I recently did a trade for a Michael Kelly Dragonfly. I was told there was a repair done to try and remedy a buzzing E string. The owner was unsure of the extent of the repair. He did complain that the pickup did not have a consistent volume between each string after the repair. The guitar has a intonation issue and the action is/was way too high. At first glance I thought it was just a truss rod adjustment. After doing a slight rod adjustment the intonation got better but it is still a good bit off on the A and E string. Later, while restringing I pulled out the saddle and realized that a wedge of bone had been glued to the bottom. The A string is noticeably more quite than the E string when plugged in. I'm not familiar with acoustic pickups so I assume the pickup is located in the bridge. Does string distance from the pickup effect the volume like an electric pickup? Would taking a belt sander to the bottom of the saddle be a bad idea?