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This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C01530.FDAF1FE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hey Guy, Have you ever done any diving or blending? Your assumptions are completely opposite of the truth and show your inexperience. Funny how this is something the strokes can never hide, it will always show and be recognized by the real players who do the actual dives. After we had all usual discussions on the nonsense of deco80 we now have a guy telling us it is a "cost" thing...too fucking funny what you all come up with... Keep trying, I wonder what's next. THOMAS -----Original Message----- From: guy@fa*.vi*.ne* [mailto:guy@fa*.vi*.ne*]On Behalf Of Guy Morin Sent: Friday, September 01, 2000 9:25 AM To: Jim Cobb Cc: Tech Diver Subject: Re: 80/20 deco Hi Jim, Thank you Jim for confirming what was elucidated in the post. For myself, you are quite right that I will be using the theoretical model since it has a good track record, and consistently estimates what I am actually diving. Doesn't the WKPP have something in regard to diving to what is planned? I would have to guess not, since they never dive what they plan. Only a fool would dive following the WKPP method without knowing all the details of what they practice, and that certainly isn't available on the net, on this list, or through word of mouth. As far as your practice versus theory, well that part is going to be ignored the WKPP obviously hasn't put in the same effort in 36/80 deco as it has in 50/100. On another note, remember that it is someone who was promulgating the WKPP method as being superior that pointed out the tissue loading from the theoretical model, not me. Let's keep that little detail in mind, shall we? He who lives by the sword... Finally, I will point out that from a logistical and consumables perspective, 50/100 deco does make better use of resources. If I was wanting to get hundreds of divers through the water to stage a big push, that would be my choice too. The major costs for a large operation is gas consumables. Using 36/80 deco requires a greater investment in blending, and gas matching, and wastes a lot of gas. The reasons are obvious, getting off back gas at around 100' prevents the back gas from getting drained as would be the case in 50/100 deco. Using back gas in deco allows it to be drained following more liberal rules than thirds. In addition, since shallow deco allows switching to back gas, that makes further use of back gas, and economizes the O2. Using O2 is simple to blend, and is insensitive to error. Since a lot of time is spent at the shallow stops, not having to blend huge volumes of gas, and the subsequent analysis required, and schedule tweaking, it makes a lot of sense, especially on that scale. So, from an operational standpoint, 50/100 is by far the best choice. For the diver who doesn't have to worry about consuming millions of cubic feet per year, and who wants accurate deco estimation in a field environment that often does not afford the luxury of a decompression chamber, something more "consistent" makes a lot of sense. -- Guy ------=_NextPart_000_000F_01C01530.FDAF1FE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 5.50.4207.2601" name=3DGENERATOR></HEAD> <BODY> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>Hey=20 Guy,</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>Have=20 you ever done any diving or blending?</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>Your=20 assumptions are completely opposite of the truth and show your=20 inexperience.</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>Funny=20 how this is something the strokes can never hide, it will always show = and be=20 recognized by the real players who do the actual = dives.</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>After=20 we had all usual discussions on the nonsense of deco80 we now have a guy = telling=20 us it is a "cost" thing...too fucking funny what you all come up=20 with...</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>Keep=20 trying, I wonder what's next.</FONT></SPAN></DIV> <DIV><SPAN class=3D030533102-03092000></SPAN><SPAN = class=3D030533102-03092000><FONT=20 face=3DArial color=3D#0000ff size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D030533102-03092000><FONT face=3DArial color=3D#0000ff = size=3D2>THOMAS</FONT></SPAN></DIV> <BLOCKQUOTE=20 style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid"> <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT = face=3DTahoma=20 size=3D2>-----Original Message-----<BR><B>From:</B> = guy@fa*.vi*.ne*=20 [mailto:guy@fa*.vi*.ne*]<B>On Behalf Of </B>Guy = Morin<BR><B>Sent:</B>=20 Friday, September 01, 2000 9:25 AM<BR><B>To:</B> Jim = Cobb<BR><B>Cc:</B> Tech=20 Diver<BR><B>Subject:</B> Re: 80/20 deco<BR><BR></FONT></DIV>Hi Jim,=20 <P>Thank you Jim for confirming what was elucidated <BR>in the post. = For=20 myself, you are quite right that I will <BR>be using the theoretical = model=20 since it has a good <BR>track record, and consistently estimates what = I am=20 <BR>actually diving. Doesn't the WKPP have something <BR>in regard to = diving=20 to what is planned? I would have <BR>to guess not, since they never = dive what=20 they plan.=20 <P>Only a fool would dive following the WKPP method <BR>without = knowing all=20 the details of what they practice, <BR>and that certainly isn't = available on=20 the net, on this list, <BR>or through word of mouth.=20 <P>As far as your practice versus theory, well that part <BR>is going = to be=20 ignored the WKPP obviously hasn't <BR>put in the same effort in 36/80 = deco as=20 it has in 50/100.=20 <P>On another note, remember that it is someone who was = <BR>promulgating the=20 WKPP method as being superior that <BR>pointed out the tissue loading = from the=20 theoretical model, <BR>not me. Let's keep that little detail in mind, = shall=20 we? He <BR>who lives by the sword...=20 <P>Finally, I will point out that from a logistical and consumables=20 <BR>perspective, 50/100 deco does make better use of resources. <BR>If = I was=20 wanting to get hundreds of divers through the water <BR>to stage a big = push,=20 that would be my choice too. The major <BR>costs for a large operation = is gas=20 consumables. Using 36/80 <BR>deco requires a greater investment in = blending,=20 and gas <BR>matching, and wastes a lot of gas. The reasons are = obvious,=20 <BR>getting off back gas at around 100' prevents the back gas <BR>from = getting=20 drained as would be the case in 50/100 deco. <BR>Using back gas in = deco allows=20 it to be drained following more <BR>liberal rules than thirds. In = addition,=20 since shallow deco allows <BR>switching to back gas, that makes = further use of=20 back gas, <BR>and economizes the O2. Using O2 is simple to blend, and = <BR>is=20 insensitive to error. Since a lot of time is spent at the <BR>shallow = stops,=20 not having to blend huge volumes of gas, <BR>and the subsequent = analysis=20 required, and schedule tweaking, <BR>it makes a lot of sense, = especially on=20 that scale.=20 <P>So, from an operational standpoint, 50/100 is by far the best = <BR>choice.=20 For the diver who doesn't have to worry about consuming <BR>millions = of cubic=20 feet per year, and who wants accurate deco <BR>estimation in a field=20 environment that often does not afford <BR>the luxury of a = decompression=20 chamber, something more "consistent" <BR>makes a lot of sense. = <BR> <PRE>-- Guy</PRE> </BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_000F_01C01530.FDAF1FE0-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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