I have recently purchased a 2001 Aqua sport Trustman cat just powered 150. Yamaha would like to know if anyone has any comments or information on this boat.

Rick, I am having Pic issues. Do you want to discuss via email?

We can - rickk@classicaquasport.com

Got around to measuring up and cutting the console down to fit the new T-Top. Need to grab a couple of sheets of Melamine to use as mold backer to build it back. I cant wait to get a deck built and start mocking stuff up!!

Very good. Now enjoy!

Other than Coosa or similarly priced materials or plywood, what other decking materials work.

I've had good luck with Nida Core (Plascore) using it for deck core, used 5/8" and 3/4" but it has its drawbacks.
Two versions available, with a scrim and without. Just a thin covering on the surface to help attach fiberglass. Get the scrim.
My layup for each side was a light coat of resin onto the scrim, then 1 layer 1708, and 1 layer of woven 12 oz., all wet on wet. Panels are reasonably light & stiff as long as you're not having to span a long distance without supports, 2 foot x 4 foot area was no problem.
The edges are the most work. If you've got an opening for a hatch and need to fill the sides of the honeycomb it takes some time but not a deal breaker. You also can't put a screw into it without prep, filling in the honeycombs, I added Divinicell as a backer where I knew I'd have screws.
It's cheaper than structural foam core.