I used to be really anal and try to get my measurements to the nearest 1/64th or whatever but I found you don't need to be that precise. Just get it to where it doesn't buzz too much for you and play it. I honestly can't tell you what the relief is on my basses and really don't care. They play good for me and that's good enough. I used to be so specific and had to measure everything. What opened my eyes was my son having his guitar set up my a local tech and found out that it just didn't work for me. Now, this is not a bash on this particular tech, he did a good job, but a setup is such a personal thing and you really should learn to do it to suit YOUR style of playing. Don't obsess about it, just get it where it work for you and keep playing!