[ScotchAndCigar]

Originally Posted by Tom K.

I've been using this inexpensive solution for nearly 20 years.

http://www.seatbelttensionadjuster.com/

Tom

Well that would work, though it's ugly-ass and a pain to attach after you've reeled-out the belt.

By the way, the problem is when the flapping turns into a rapid buzz that lascerates your shoulder.