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This is a multi-part message in MIME format. ------=_NextPart_000_0029_01BDE589.0F4C97C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Mike You did ask agencies why they did not teach mix in the 130 to 150 range. = I for one did answer you and stated IANTD does in it's intermediate = trimix program. Now as far as skill and theory go it does require more skill to do = deeper dives than shallow ones and more equipment management. Divers on = deeper dives face more potential for stress than on shallow dives. For = this reason these should and hopefully always will be skill related = courses. also the degree of knowledge, skill and experience to manage dives in = the 130 to 200 zone is much greater than in the 130 and shallower zone, = the ability to manage dives in the 200 to 260 zone is increased again = and as divers get deeper and into hypoxic mixtures they need a better = understanding of the physiology and gas management procedures. Having = taught a fair number of people gas diving I for one would be horrified = at having magic wands waived to allow divers to do deep mix dives (as in = deeper than 130) so IANTd will always require dives, theory and = demonstration of the ability to manage stress and gas and to safely plan = and accomplish technical dives. In fact each year I become more aware of = the needed extra training. I hope you are correct in your statement that mix will become as popular = as EANx, but see pitfalls due to divers not wishing to spend the money = on helium, and in parts of the world it is quite difficult to get. I also hope many will not share your viewpoint that all one needs to do = to go from a basic recreational diver to a trimix diver is to buy a = bottle of helium and mix it up. If they do the number of accidents will = become frightening and we will all be banned to Lee Somers prediction of = SCUBA 20005, where the experienced diver may watch the wall diving video = to fulfill his/her need for adventure while the SCUBA police observe to = see that we are not getting overly excited by the experience. Safe Diving to You Tom Mount CEO IANTD World HQ http://www.iantd.com ------=_NextPart_000_0029_01BDE589.0F4C97C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> <HTML> <HEAD> <META content=3Dtext/html;charset=3Diso-8859-1 = http-equiv=3DContent-Type> <META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT color=3D#000000 size=3D2>Mike</FONT></DIV> <DIV><FONT color=3D#000000 size=3D2></FONT> </DIV> <DIV><FONT size=3D2>You did ask agencies why they did not teach mix in = the 130 to=20 150 range. I for one did answer you and stated IANTD does in it's = intermediate=20 trimix program.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Now as far as skill and theory go it does require = more skill=20 to do deeper dives than shallow ones and more equipment management. = Divers on=20 deeper dives face more potential for stress than on shallow dives. = For=20 this reason these should and hopefully always will be skill related=20 courses.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>also the degree of knowledge, skill and experience = to manage=20 dives in the 130 to 200 zone is much greater than in the 130 and = shallower zone,=20 the ability to manage dives in the 200 to 260 zone is increased again = and as=20 divers get deeper and into hypoxic mixtures they need a better = understanding of=20 the physiology and gas management procedures. Having taught a fair = number of=20 people gas diving I for one would be horrified at having magic wands = waived to=20 allow divers to do deep mix dives (as in deeper than 130) so IANTd will = always=20 require dives, theory and demonstration of the ability to manage stress = and gas=20 and to safely plan and accomplish technical dives. In fact each year I = become=20 more aware of the needed extra training.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>I hope you are correct in your statement that mix = will become=20 as popular as EANx, but see pitfalls due to divers not wishing to spend = the=20 money on helium, and in parts of the world it is quite difficult to=20 get.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>I also hope many will not share your viewpoint that = all one=20 needs to do to go from a basic recreational diver to a trimix diver is = to buy a=20 bottle of helium and mix it up. If they do the number of accidents will = become=20 frightening and we will all be banned to Lee Somers prediction of SCUBA = 20005,=20 where the experienced diver may watch the wall diving video to fulfill = his/her=20 need for adventure while the SCUBA police observe to see that we are not = getting=20 overly excited by the experience.</FONT></DIV> <DIV><FONT color=3D#000000 size=3D2><BR>Safe Diving to You<BR>Tom = Mount<BR>CEO IANTD=20 World HQ<BR><A=20 href=3D"http://www.iantd.com">http://www.iantd.com</A><BR></FONT></D IV></= BODY></HTML> ------=_NextPart_000_0029_01BDE589.0F4C97C0-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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