I have the X5 and Renegade like Blue has (wonder why?). The Renegade with the inflatable seat area and the stadium type seat is the most comfortable setup I've ever had. Let a little air out to your liking and I can last a lot longer on the water than I can on the X5. Weighing about 230, my ass compresses the plastic seat "padding" in a nano second it seems. One inch of cheap foam doesn't govern far. Then it's constant fidgeting and rocking back and forth to get comfy. That starts to blow after a while. I thought I was the only one with this affliction bawling:. We did have Bucks Bag Alpine back in the old days, and I did put on one of those thermal rest tush cushions on like mentioned in a previous post (it had no back or seat cushion on it at all) and used some spray adhesive to glue it down permanently. My brother's wife has it now and it still going strong after 11 or 12 years. Myself, I was thinking of having the seat re-upholstered and having them put a denser foam put in. I wonder if memory foam would work?