sorry Al, can't give away trade secrets
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just kiddin' Al!! on this particular bib, it had a very think soft padding on the backside and i was able to bend the prongs of the studs over and tighten them enough that the thick, soft, material will keep the prongs from scraping the paint.
on others that don't have that, i usually will use the commercial grade velcro and cut it in a long thin strip to cover the stud prongs, then put the other piece of velcro on the tank...or whatever and that will also keep the ends from turning up.
remember, don't tell everybody about this!!
Bud