Not as much chopping to make the RoadStar work. U must heat the front of seat to fit curve of the enclosure. I shaved a lot of foam from seat to make it sit lower, and narrower so my feet fit flat on ground.......I also drill 3/4 inch holes from bottom side of foam but not all the way through the top side,,,,,to make it softer. We are loaded ready for 9 day Memorial Day camp'n trip, but I easily removed seat,,,,,and here are some Pictures----pretty self-explanetary.