I am looking to modify my Pilgrim Expedition seat so i can get better rotation for a few more Greenland rolling skills and will have to come up with something other than what NDK offers for the Pilgrim. anyone else changed out the seat in their Pilgrim? if so what did you do. Also the seat i have is a nice Fiberglass NDK seat. what is it's value. i will most likely sell if it all works out.