finished my new foam seat today I was surprised how easy it was to do, I had a cut off disc for the grinder for steel, it worked better than the belt sander, very good for cutting the foam and shaping it,the foam I used is rebond foam, it ia 5 lbs. per cu. foot, very firm foam 4 inches thick it replaces the 8 inches of the other foam I had ,. when I sit on it I am at the same hight , I cut a angle to make the seat slope back so I do not slide forward Ill miss that weggy feeling??? and sore butt., moved the saddle back about 5 inches, so I can move my legs, and arms are reaching farther forward now,. tomorrow ill do about 200 miles to check how comfortable it is ,.