My drivers side belt is driving me nuts, as well as cutting into my neck it locks up very easily - is it possible to adjust the locking point on inertia reel?
i've had the same problem. the mechanism jams if the car is not absolutely level. eventually cured it by completely unwinding it and feeding belt back carefully, checking nothing obstructs the reel and a set of harness pads
I got some chrome seat belt guides from v8 enhancements they look the biz and move the belt away from your neck they sit on the same bolt as the roof bolts sadly i see they stopped selling them might be worth asking then see if any left