I have a 0.5 micron CrOX on Balsa and a 0.25 micron diamond on felt. I have read a couple of different ways to use them, but am not sure how. Normally I would go to the 0.5 then the 0.25 followed my linen/felt and leather. I have read a couple of spots where they go from 0.25 diamond then up to 0.5 CrOX. Any clarity?