Dana 60 gear

Just venting..... I just set up a used set of gears for my Dana 60. The pinion called for 3.120 depth, I removed a set that had a depth scribed on it of 3.125. The depth on the set removed was at 3.115. So that is where I started with the other set, and the pattern was too deep. I kept removing shims, disassembling numerous times, until I got a depth reading of 3.152. I got the bearing preload and backlash good, but the pattern is slightly deeper than I would prefer. I had this same problem with other gears, I set up I my buddies race car. He probably had over 500 runs on then, and they were fine. Am I just being too much of a perfectionist or is this common ? I didn't take any pictures, I was too disgusted at the time. I am going to run it anyway.