[Paddlewise] Whitewater vs Touring Squirts?

I could use a little help with a purchase.  I need to
buy another paddling squirt so we can get both boats
out at the same time.  I'm trying to figure out the
advantage of a touring squirt vs a ww squirt for my
touring boat?  Obviously, most of the touring models
have a lot more nylon vs neoprene and don't fit as
tight.  Is there a reason for this?  Do they still
sandwich between layers in a drytop?  I have used my
ww squirt with touring boats and it seems OK and they
are a lot easier to find in my area.  

Thanks for your help.

Scot

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