Thread resurrect...
My Arrow has the OEMs retractables on it (attachment point on roofline by the rear seats) and my gripe is that they simply ride too high on my neck. I'm not talking a little rubbing on the crease, I'm talking the belt line crosses AT the neck. I suppose workable if the belt was of the manual variety and you could just manually slack it, but Completely unusable in the inertial type. So I'm flying just with lap belt.
Looking at airplanes I've flown when I was a renter, the Cessna setup circa 172Rs seemed to solve this problem, as it has a loop on the seat side where the shoulder belt is routed through, effectively lowering the hinge point to shoulder height, making the line crossing your collar bone as is the case for automotive setups, and not your effing neck.
Anybody knows if there are retrofit loops for Piper halfback seat applications, or otherwise aftermarket harnesses with lower hinge points, such as the ones seen on mooneys? A roofline hinge point is just way too high for single belt harnesses, it renders my Arrow harnesses impracticable.