Best drilling for what it's designed for, medium to heavy oil, longer patterns which I seem to struggle on. From what I've read the Mean is a real smooth arcing ball that saves all it's power for the backend, so I'm not real sure which MB position would work best. Goof, I haven't had a chance to get to the lanes this week to get a good track to measure, but the diameter is 9.5 to 10.5 inches and yes it's consistent. Reason I'm asking, I went to three local drillers and got three different responses. 1. 3 3/8 x 3 3/8, MB on VAL, X-Hole on VAL. 2. (MSD) drilling from Track drill sheet 3 1/2 x 4 3/4 Strong Reaction. 3. Label Leverage (That's all he said, not another word). I was planning to go one of Del's clinics in October, but I'm not sure I can go right now. In case I can't, I want to have some kind of idea how to lay this out and not (hopefully) screw it up.