I have a couple of questions: 1) Do you measure from the top of the pole piece (if poles are raised like on Fender Custom '60s pickups or SX pickups) or the top of the pickup covers? 2) Do you measure from the left (neck) or right (bridge) side of the pickup, or should the pickup be parallel with the string instead of the body? 3) How much shorter should the pickup height be on the G string in comparison to the E string? 4) How much shorter should the pickup height be on the bridge pickup in comparison to the neck pickup? 5) What should these measurements be for a 7.25" radius Jazz Bass? Thanks, I appreciate any input.