I've always been annoyed that the seatbelt mounts so high on the quarter panel, causing the belt to always rub my neck. I tried removing the bracket, routing the seatbelt straight out of the quarter panel and over my shoulder and it felt great. However, because of the angle, it doesn't smoothly extend and retract. It seems that this could be solved either by replacing the bracket with a long rigid one that still bolts high on the quarter panel (but lowers the point that the belt threads through) or by adding another bracket for the belt to thread to (maybe attached to the seat back).
Before I start tinkering, are there safety considerations that I haven't though of, or has anyone else made something similar?