Don't drink the Kool-Aide! If .007 is acceptable, .010 will be fine with that big of a bore and forged pistons. That difference in clearance isn't going to cause the rings to not seal properly, sure it may not be the absolute best possible but you'll never know the difference if you stop worrying about it. Not having any taper in the bore and setting the end gap on the rings where it needs to be will be the important things, probably .018-.019".