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From: <CaptnDale@ao*.co*>
Date: Wed, 26 Jul 2000 17:43:56 EDT
Subject: Re: DIR talk vs DIR diving
To: mjblackmd@ya*.co*, proverud@on*.no*
CC: techdiver@aquanaut.com
In a message dated 7/26/00 12:24:21 PM Central Daylight Time, 
mjblackmd@ya*.co* writes:

<< Sherwood Maximus or Brute regulators work well in icy cold water.
 I prefer the Dacor Extreme.  Scubapro regs (all of them) are more
 prone to free-flow in icy cold, so much so that Mike Zee in Whitefish
 Point won't even let you on his boat with one. >>

I would agree that Sherwood regulators are not prone to freeze up.  The Dacor 
Extreem, on the other hand, is one of the worst designs I have ever seen for 
cold water.  It is designed to automatically INCREASE INTERMEDIATE PRESSURE 
WITH DEPTH.  That causes a slight freeflow and often results in a freeze up.  
As for what Mike Zee allows - I dove with him on his boat last year and used 
my usual rig which includes two Scubapro MK14's for my primaries and Scubapro 
MK2's for my stages.  BTW, I have never been able to make my Scubapro MK14's 
freeflow or ice up, nor have I ever seen anyone else freeze one of these 
regulators.

Good diving,
Dale
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