Well I had a 3" strap that was great for my G&L that I just sold...super comfy and long enough to stretch around my 6'4" shoulders. If you're looking for something with great personality and super comfort...go to
www.souldier.us
I am not affliated with them in any way...just a repeat customer. Here is the one I got for my Sting P-Bass. The straps are based on those old ACE straps. Considering I held the very ACE that mine is based on(Eric Clapton)...I choose the Souldier, less expensive (by 150 bucks) and built much, much better.
Yes that is a seatbelt back...good luck tearing through that!