I am very new to after market straps as well as how to properly size one. I have a 6.5" wrist and am looking for an after market strap for my PAM homage. Problem is I don't understand all the numbers like 130/80 or 120/80 or 115/75 and how they relate to the size of my wrist. This may be a very ignorant question but I want a nice distressed looking strap that will fit my wrist perfectly. What size do I go with and who is a good manufacturer?