So when I'm doing this grinding on the flywheel and crank with the valve grinding compound should I put the flywheel on and just apply pressure with my hand and spin the wheel by hand or should I use a wheel holder and have my brother put pressure on it and kick the bike over to spin the crank inside the flywheel? My thought is I'm gonna generate more grinding friction and speed by kicking it over and holding the flywheel stationary but I don't know if that might do to much grinding.