I bought a Joe Greenley seat for my Shooting Star, and basically copied it for my wife's Storm SLT, using one of Joe's presculpted seat bottoms. I made the back more than twice as high as the small back of the SS seat, molding the seat-back strips around a 33-gallon plastic trash barrel, then glassing them, and adding minicell to the front. (The seam in the foam back you see is due only to my being unable to get a larger piece of foam at the time.) The rear view shows the strips and some pads I added to keep the seat back from rubbing on the coaming riser. The support on the seat back needs to be thicker (Joe's is about 6 inches thick and quite inflexible), and I plan to add another layer of foam to it, once my local dealer gets some stock. Hope this helps. It's quite a simple project, and both seats are super-comfy.

--S