Not true. There is no way to make honing stones take material off one side only. They take an equal amount off the block and the caps. If you line bore it, yes you can bias it toward the cap.
I am fully aware they take an equal amount off. The bar is round. I simply said to bias it toward the main caps more, which you certainly can do. I have aligned probably over 150 blocks when I was working in the machine shop. I have hands on experience with it.
