I've had years of use out of my sb5 belts. About every 5 years I buy a new one and hand the still good used one off to a buddy that's too cheap to buy a good belt.
This time I bought the sb6 it's just a pretty version of the sb5 workhorse.
Sb5 or sb6 are both great belts.
I've been using galco since I was 14 years old. 30 years. If the lords willing and the creek don't rise I hope to be using galco for the next 30.