I'm currently diving with a Weezle Extreme undersuit under a membrane suit,
but recently i've found I need to wear a couple of layers of jumpers in
addition to the suit to keep me warm after 30mins or so in Stoney (6/7c I
think yesterday).  In fact, yesterday I was wearing three (not too bulky)
jumpers, my Weezle Extreme, and a thin t-shirt under all of that, although
that did keep me warm!

I'm going to get a skin suit to go underneath, but i'm also thinking of
something better to go over the top - my jumpers are causing causing issues
with dumping air, in that they are restricting flow to the auto-dump and so
dumping air is very slow.

I was looking around, and saw the Weezle Argon waistcoat, supposed to be
made from the same stuff as the Extreme Plus.  I was thinking this would be
good, but it says its not designed to be used under a drysuit with the
normal Weezle undersuits.  Is there a particular reason not to use them,
since it seems the ideal way to keep my body warm without having big bulky
suits in the arms and legs where I don't really need the extra insulation.

So, any reason *not* to use a Weezle waistcoat under my drysuit?

David