The guy that does my machine work has a block of mine to machine clearances for a set wisecos I'm gonna be running in it. Hes had it for awhile stressing about getting cylinders perfectly true and round (guy does great work and is a perfectionist). The problem is it's a .015 over block and I got .020 over wisecos. He said it's not enough metal to be removed with the boring bar, would have to be done with a hone. I wasn't aware of this when I purchased pistons. His concern is if cylinders aren't true, they will stay untrue. My guestion is, what can be used to increase clearance and true up a cylinder. Is it something worthwhile for me to purchase or would be too expensive?