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I ended up trading a surplus HP 100 (another useless tank) for a set of steel 72's doubles. Don't feel like dealing with all the hassles of setting up dual OMS 46's properly, let alone paying the price. Hopefully, at around 75 lbs full, the steels will be a light enough set for rec diving. Basically, I just don't like to dive anything other than doubles. I guess if I stumble across a chance to get a set of 46's at low cost someday, I may do it still. The rig is probably another 25lbs lighter. Cam ----- Original Message ----- From: "Jim Cobb" <cobber@ci*.co*> To: "Maggie" <mmowens@pa*.co*>; "Jim Cobb" <cobber@ma*.ci*.co*>; "Cam Banks" <cam@ca*.co*> Cc: "Techdiver Mailing List" <techdiver@aquanaut.com> Sent: Saturday, April 08, 2000 8:02 AM Subject: Re: Dual OMS 45's > Hi, Maggie- > > Without a doubt doubles are more comfortable underwater than a single. And > as far as I'm concerned you can't have too much air in the water, rec or > tech. > > And especially a single with a stupid pony hose-clamped, duct-taped or > otherwise attached to one side. That is the most stupid, unbalanced, > ignorant setup of them all. Anybody who uses that setup is a real clueless > moron. They snag lines, you can't reach the valve and they make swimming a > nightmare. > > I used to have one and it only took me about 4 dives to realize that the > moron who came up with that config must of been a brain-dead, half-wit. > Probably an OMS employee who followed up the next day with the bondage > stuporwing "stroke" of genius idea. > > And shame on DiveRite for soaking the strokes with their $80 pony bracket. > Man what cash cow that one is, from what I've seen the strokes eat it up. > DR's excuse is that its an argon bottle holder. > > As I mentioned to Art the drawbacks of a set of double 40's are such that > your money is better invested in a set of real doubles. But if you are flush > with cash, what the hell, buy as many sets as you want. At least make them > AL 40's so you can use them for deco bottles. > > Jim > ------------------------------------------------------------------- > Learn About Trimix at http://www.cisatlantic.com/trimix/ > > > From: Maggie <mmowens@pa*.co*> > > Date: Fri, 07 Apr 2000 12:44:42 -0400 > > To: Jim Cobb <cobber@ma*.ci*.co*>, Cam Banks <cam@ca*.co*> > > Cc: Techdiver Mailing List <techdiver@aquanaut.com> > > Subject: Re: Dual OMS 45's > > > > Jim, > > > > As usual, you have a lot of good points, but I would like to dispute a > > couple of them. > > > > At 08:50 AM 4/7/00 -0400, you wrote: > >> IMHO you should not waste your hard earned bucks on double 40's. Double 95's > >> or 104's or AL80's are much more versatile. > >> > >> -You can do a 2 dive rec trip on the same set of doubles. With double 40's > >> you would need 2 sets or hope the boat has air. > > > > Or you could bring a single for the other dive. > > > >> -Buoyancy characteristics of the 40's are not correct for drysuit use, you > >> would need a weight belt. > > > > Not necessarily. Anyway, if you needed a weight belt for the 45's, you > > would need one for a set of al. 80's. > > > > Having never used the 45's, I can't speak from personal experience, but I > > use no weight other than my SS backplate when diving with Faber 85's or > > Faber 95's, and according to the OMS web site, the buoyancy of an empty 45 > > cu. cylinder is the same as an empty 85 or 95. So were I to dive with a set > > of double 45's I would not wear any weight. I do not recall seeing Tina put > > on a weight belt when she and Art came diving on the Wahoo last summer, so > > I suspect that she doesn't wear one with the 45's. When one is small, one > > has less buoyancy in a dry suit than a larger person. A larger person, no > > matter how lean, would probably have to wear some weight with Faber tanks. > > > >> -Double 95's or 104's are heavy only out of the water. I don't know about > >> you but I configure for the dive, not for the surface. > > > > One argument in favor of using a single tank is that it is less trouble to > > schlep around out of the water. Nobody I know would choose gear primarily > > for this reason, but it is something they might take into consideration. > > > >> A good idea if you intend to advance to tech diving is to go ahead and get > >> setup DIR and dive all your dives, rec or tech, like this. This way you > >> become one with your equipment, know exactly what your buoyancy is for > >> every dive, know exactly where your equipment is located. And no better > >> way to get used to your equipment than to use it frequently and on lots of > >> low-stress dives. > > > > I agree wholeheartedly. > > > >> Otherwise stick with a single 80 and plan your dive appropriately. > > > > One thing you're missing out on is that doubles (and despite their > > diminutive size, I suspect this would be true of the 45's as well) are more > > balanced and comfortable than a single in the water, despite the additional > > drag. This is one of the main reasons why I rarely dive with a single, no > > matter how short and shallow the dive will be. > > > > Overall, I agree that buying a set of 45's is a waste of time, money and > > effort; however if one already happened to have a few of them for some > > reason, it would not necessarily be a bad idea to give this setup a try. > > > > Maggie; > > > > > > > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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