I was looking at one of these today (new) and was wondering about the pickup. The pole pieces for the E, D and G strings were at or near flush with the PU cover, but the ones for the A string were significantly higher--so much so that that side of the pickup had to be lowered proportionately to achieve the same pole piece to string spacing as the others. The tech removed the pickup for examination and said that the pole pieces were flush with the back, so they were just longer than the others. It sounded fine--just looked funny. Manufacturing defect, or what?