I gave evolved into liking lower volume, very snug fitting boats. I am 5'11" 185lbs. I have an Alchemy S that I have moved the seat back, modified the thigh pads and installed a WW style bulkhead foot rest.
The problem is the stiffener channel that runs down the bottom of the hull. My size 11.5 shoes catch the center rib when I want to relax and move my legs around. The stiffener is not bonded to the hull, it is wedged on the front under a foam pillar near the very front bulkhead, and at the rear by wedge under the seat pan. If it were easy to replace it after removal I would try it out and replace it; but is would be a major PITA to replace if the boat really got flexible.
I wear Merril Manatee shoes that are nearly as low clearance as wet socks, and I need the protection from rocks and zebra mussels that shred neoprene style wet shoes.
Eventually this will be a rock garden boat once my skill set grows. Am I looking at folding up the Alchemy by removing the stiffener?