Riflenut, You start at .01" or .001" I think you meant to say one thousandth not one hundredth, a lot of difference between the two, or ten thousandths? I usually start at ..010" off and work back til I find the best results of 3 shot groupings. Then shoot some five shot groups to prove it out.
Nope, said what I meant. .01" is 1/100th which is 10/1000ths. From there, I work in increments of .01".