Hello Ian,

> On Wed, 10 Jun 2009 21:56:27 -0400 in uk.rec.scuba, Lee Bell says:
> 
>>> What sort of ascent rate does the Vitek use?
>>> 
>> Slow, very slow.  Several of us have been shouting warnings about the
>> ultra conservative Suunto computers for years.  Check out your
>> partial pressure and depth limits and you'll find that your computer
>> doesn't do them right either.
>> 
> After I'd sold on my Vyper for a Quantum I did a dive with a friend
> still using his Vyper. We were at 40 - 42 metres for sometime,
> probably on 28%. The oxygen warning on his Vyper was off the scale
> before we left the bottom.
> 

I'm fat and over 50 so the Vitek being overly conservative doesn't bother me.
It still lets me do the diving I want to do.
I also changed to a 50% deco mix from 20m but didn't tell my computer so 
I'm VERY conservative myself anyway.
If I hadn't already been very conservative I might have chucked in a deep 
stop too while doing the gas change.
I wasn't pushing any limits here, other than boredom on the ascent.
On a deeper/longer dive I might get closer to the Vitek's limits and told 
it about the deco gas in the understanding it is also conservative.

I'm just trying to work out why I got SLOWs.
The slows were not at the time of the gas change, they were spread out.  

Ron.

On Thu, 11 Jun 2009 08:09:41 +0000 (UTC) in uk.rec.scuba, rmacrae
says:

>I'm just trying to work out why I got SLOWs.
>The slows were not at the time of the gas change, they were spread out. 

Momentary high ascent rate. OK different computer but last night I
popped into Wraysbury with my daughter to check out some kit. I
noticed an ascent warning going from 4 - 3 metres, since I could see
both platform and a line I knew I had barely moved but a slight ascent
coupled with bringing my right arm up was enough. 


-- 
Ian
A man with his hands in pockets feels foolish