Custom Seat Ideas 4th Gen

I bought a corbin while I was in Iraq last year thinking out would cure the monkey butt. Over all of the "It's takes a couple thousand miles to break in" things I read while I was over there, that's not the case.
I put 5k on the Corbin commuting, touring, and in the twisties since I got back in mid June.

After much of the research I am going to create a dual density seat with a neoprene base and a rebonded foam top with a 5/8" think gel insert.

http://www.sargentcycle.com/csfoam.htm is a great template to follow for flattening out the slope of a seat.

I just can't find much on motorcycle seat cover material online. They say to use marine vinyl or Naugahyde but out here in AZ that stuff sucks and gets extremely hot.

What would you guys think about a either a think Neoprene cover or possibly a Water proof microfiber. Both are reasonably priced, waterproof, breathe, and resistant to UV damage.
I just am not sure how it would be in a seat configuration.

Just looking for some 2 cents and Ideas to throw into the mix.

My link take a look at this site.........he has specs on different materials. I've visited the shop.........nice guy and very nice work. He'd probably
make some recommendations and sell you materials for your project.

I ordered some foam by www.foambymail.com..

I bought 3lbs 1/2 minicell foam which is a 27"/80" sheet
Then the top layer is 2lbs 1" minicell foam sheet 36"/48"

Minicell is a foam used to make custom kayak seats and its a great cost effective weatherproof foam. THis looks almost like the foam upgrade that sargent provides
for our seats. I will layer the seat pan and then form it using a level to keep the flat line for the bike. I plan on adding a gel insert I have laying around that is 5/8" thick
underneath my pressure area. I will use marine vinyl to cover the seat and will talk it to an upholsteryshop around here to do it for me. The shape will be a lot flatter then stock and my corbin with some contour for my cheeks.