I switched from an ESP LTD bass to a P Bass. One problem though when strapped on the head stock balances lower than what I'm used to. This was really noticeable to me last rehearsal. I mostly play resting my thumb on the pickup and found that I was pressing down on my thumb to keep the headstock up. If I bring the headstock up, the weight and balance of the bass brings it back down. Any advice? I tried getting a really nice thick bass strap. It's comfortable but seems to make this a little worse.