i would like to shave the seat on my bike by approx. 1 - 1-1/2" but i am unsure how to go about this. i was thinking that i could take the cover off and measure and mark the foam with a magic marker. then using a bread knife carefully cut along my marks, restreach and reattach the seat cover. if anyone has done something like this before i'd be interested in how you did it and how it turned out. there is also a place near here that recovers car seats and i was thinking of talking to them and seeing if they could shave the seat for me. any idea what would be the best way to go with this?