Re: needs of scope ring lapping ?
I have lapped Badgers, Nightforce, leupolds and even seekins rings and I have yet to see any set of rings that after a few passes with a lapping bar didnt show high parts and uneven cutting. Not matter how precise they are made, when they are mounted in a mill they will allign differently when mounted on your rifle.
There are always differences in the thickness of the coating or anodizing, differences in the rail, and difference between the scope and ring size (30mm is not always a true exact 30mm between different manufacturers).
If you have the equipment, why not take the 15 minutes and do it right? Then you can be sure of a perfect contact all around the tube.