Simon you said but the obvious issues e.g. BC on the left > post- if the rolls off AND breaks/bends (as I understand is possible) you > will be left without BC inflation. Since dry suit inflation should come > from an Argon cylinder, it makes sense to connect the BC to the most robust > post- the right hand side. I think i would much rather have the BC inflator hose on my left post so that if I do bump or damage the valve handle, I will have a warning, This to me is a much better decision than having had accidently had it closed or damaged and then get into an out of gas situtation and discover I had no gas once I handed of my long hose. and then have to correct thesitutation. My way it is unlikely that I could get into the later situtation. Oral inflation of a BC is rather easy, for years that was the only way we did it. So loss of an inflation hose is not a real issue. plus when on gas I use argon but have a separate hose from the right post that will fit either my dry suit of BC. When I dive wet still no problem. Maybe you should do two things have the extra hose is totally out of the way and maybe you should practice oral inflation of a BC it really is easy. Respectfully yours, Tom Mount CEO IANTD World HQ http://www.iantd.com ----- Original Message ----- From: Simon Murray <simonm@ho*.co*.za*> To: Tom Mount <TOM.MOUNT@wo*.at*.ne*>; Tech Diver <techdiver@aquanaut.com> Sent: Friday, February 25, 2000 3:14 AM Subject: Re: stroke tee shirt /dive girl mag > Thanks for the post, I had seen your earlier one regarding your equipment > configuration, but the detail you provided below makes the differences > clearer. > > While I can see several counter arguments to the ones you put forward below, > I dont think that I have anywhere near deep enough insight into how DIR > evolved to point out anything but the obvious issues e.g. BC on the left > post- if the rolls off AND breaks/bends (as I understand is possible) you > will be left without BC inflation. Since dry suit inflation should come > from an Argon cylinder, it makes sense to connect the BC to the most robust > post- the right hand side. > > I look forward to the replies of more experienced DIR divers. > > Regards, > > Simon Murray > > > ----- Original Message ----- > From: Tom Mount <TOM.MOUNT@wo*.at*.ne*> > To: Simon Murray <simonm@ho*.co*.za*>; Tech Diver > <techdiver@aquanaut.com> > Sent: Thursday, February 24, 2000 8:13 PM > Subject: Re: stroke tee shirt /dive girl mag > > > > Simon > > I already posted my personal configuration which is hogarthain but not > DIR; > > So if you have been following this you already have a copy of it if not > look > > into the archives > > > > First Difference I use a quick release on my harness in OW and wreck dives > > It is located on the lower left shoulder strap > > Why, because a couple of years back I have a student in a trimix > course > > during the descent have problem and she bolted. I worked with her and got > > her to thesurface where she became passive incoherent and had me quite > > worried about an AGE. We were both in Continuous webbing. while I practice > > removing my gear all thetime while swimming and static in this situation > > trying to maintain her stability I could not get hers or my gear off. Yes > I > > did cut her out and theboat did come to us but it took about two to three > > minutes cutting the WET webbing. As itturned out she did not have any > > problems but had she had an AGE that extra time could have cost her her > > life. Thus I immediately went to Brownies and had them install a Quick > > Release on my harness > > IANTD in its trimix course requires a rescue and removal of all > equipment > > as PART of emergency response training. the equipment is removed within 1 > > 1/2 minutes. It is extremely rare that someone in a continuous webbed > > harness can complete this. Why the time limit because AGE has to have > quick > > response to save lives. Also try removing someone's equipment in a 4 foot > > sea without a quick release and without half drowning them and you may see > > why my preference is to have a quick release. > > bottom line I use a quick release because it is an effective life saving > > tool, > > And no it does not matter in cave diving's usually where a problem exist > the > > last thing you would do is remove equipment inside a cave hundreds or > > thousands of feet in. > > If you review the history with quick releases the incident of failure are > > so remote as not to be significant so I find the argument of if your Quick > > Release breaks on a cave dive you will lose your gear > > In addition you can disconnect a Quick Release and swim the equipment > > without it coming off if you place the quick release on the lower shoulder > > strap. Fabio Amaral who runs the operation in Bikini did a complete dive > > (extensive penetration) on the Saratoga and undid his quick release as > soon > > as he got in thewater. He did not even have to touch his gear theentire > dive > > . He did snap it back before climbing up the dive ladder. I have done > > similar practice drills and had students do them no one yet has had the > > equipment shift or come off > > > > > > Second Difference All my hoses go straight down they don't criss cross. > > Basically I do not like a confused area behind my neck with criss crossing > > hoses. This item is personal preference > > > > Third difference My BC inflation hose is on the left post with my back up > > regulator. Why because it is a probable warning if I accidentally bump the > > left post shut and it is in my opinion a clean setup. As the only time > I'm > > ever negative is during descent the argument about a sudden loss of > buoyancy > > does not offset the advantage of the possible warning of a valve closure, > > Even should I have a buoyancy loss I can oral inflate my BC a skill I do > > teach and practice. > > > > Fourth difference my dry suit inflation hose is on the right post, when > > using mix I use argon and the dry suit is inflated from the argon cylinder > > but I keep the extra hose under my shoulder harness and linked to the > argon > > hose so it does not create drag and can easily be connected in case of a > > failure from the argon hose and I still keep my bc connected with its > normal > > inflator. Al hose connections are interchangeable BC and dry suit. > > > > Sixth difference is Instead of attaching theSPG to the waist D ring I > attach > > it using a short hi pressure hose to a lower D ring on the left shoulder. > > It this position it remain at the d ring level rigid due to the hose > length > > and I can simply glance down and read it any time with or without stage(s) > > > > Seventh difference is I place my lift bag when diving off shore at the > base > > of my back plate as it is easy to remove and can be replaced and creates > > zero drag and most of all is completely out of the way > > > > Long hose storing and breathing , light placement etc is all as in DIR > > > > So now Simon you see the difference and a brief explanation of why. > > > > I do not think there is anything wrong with DIR I just think that options > > such as the ones I use are logical and safe. > > > > I do think that continuous webbing in OW creates more of a possible > > liability than having a quick release and base that on my experience > > described above and on observation of others. In cave it really does not > > matter > > > > Now I have no intention of responding to some of the yelling I imagine > will > > follow as it is not DIR but for some they may find this approach every bit > > as attractive and safe as DIR > > > > Basically I think good configuration comes from applying logic and > > application and listening to others. As I stated in an earlier post. > > > > > > Respectfully yours, > > Tom Mount > > CEO IANTD World HQ > > http://www.iantd.com > > > > ----- Original Message ----- > > From: Simon Murray <simonm@ho*.co*.za*> > > To: Tom Mount <TOM.MOUNT@wo*.at*.ne*>; Tech Diver > > <techdiver@aquanaut.com> > > Sent: Wednesday, February 23, 2000 10:06 AM > > Subject: Re: stroke tee shirt /dive girl mag > > > > > > > > > > ----- Original Message ----- > > > From: Tom Mount <TOM.MOUNT@wo*.at*.ne*> > > > > > > <snip> > > > > > > At the risk of getting in the middle... > > > > > > > Anyway if you would like to have this discussion then lets do it if > not > > > > then lets do as we agreed per your request and drop the issue. It > would > > > be > > > > quite time consuming for both of us and whoever else elects to > > contribute. > > > > But it would be an actual open discussion for all to participate, > > > > Who knows we may all gain from such a presentation of configuration > > > issues. > > > > > > I know the DIR configuration *very* well so why dont you kick off by > > telling > > > us how your personal configuration differs from DIR and why it is better > > to > > > configure your way ? > > > > > > > > > Simon Murray > > > > > > > > > > > > > > > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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