Some pretty amazing dives have been made on Mk10 & 20's using a variety 
of gases. Why the concern? Do you have a respiratory problem? Smoke 
cigarettes? The nitrox & titanium stuff is a bunch of marketing hoohaa 
and bullshit. Don't be a sucker.

I have been using nitrox with my plainjane Mk 10's for many many tanks 
and so far I have neither blown up or burst into flames. And as far as 
weight (AL, TI etc.) is concerned, whatever you take off the regs you 
will have to put on somewhere else.

BUT you will have great oneupsmanship on the diveboat. S/He- "Say, what 
kind of reg is that?" You- "Why, it's TITANIUM" And there you go. 
Hopefully, if it's a babe, you will get laid. If it's a guy, he will 
figure you a Manly Dive God and will help you hump your gear off the 
boat. Might even clean your fish for you. (Hmmmm, maybe I'll go get me 
one o' these atomic dudes).

   Jim

>I just bought an Atomic Aquatics 2nd stage, this is the new ALL Titanium 2nd 
>stage, It's supposed to breathe better and hold up better then any regulator 
>ever built before. I want to get a 1st stage to go with it and I also plan 
>to 
>dedicate it for Nitrox use only.  My top choices for 1st stages are;
>
>Atomic Aquatics, Brass 1st stage
>
>Atomic Aquatics, Titanium 1st stage (very expensive)
>
>ScubaPro's Mark 20 Nitrox 1st stage
>
>ScubaPro's Mark 20 Ultralite Aluminum 1st stage (price and availability 
>unknown)
>
>I have already used the ScubPro Mark 20 Nitrox with their G250 2nd stage for 
>over a year and love it. 
>With the other regulators listed and other new regulators new to the market, 
>I'm wondering if I should use something new or stay with what I've used.  
>I'm 
>looking for the BEST possible performance. I'm also looking for reliability, 
>trouble free operation since I'll be traveling with it to remote places 
>where 
>service will be unavailable.
>
>Any recommendations would be appreciated!
--
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