Originally Posted by
rcc56
I check a number of different intervals between adjacent strings and position the bridge so everything is in reasonably good temper. I check major thirds, perfect fourths, perfect fifths, and octaves. Sometimes I have to do a little filing to adjust the compensation of one or two of the string sets on the saddle. I do it all by ear. That's the gist of it.
It requires a very good ear, a fresh set of strings, and plenty of patience. If I tried to write it all down, it would be an unintelligible mess.