A good friend of mine (Lynn Busbee) from FL has a good business with used bows. When he trades for or buys a new (used) bow in the first thing he does is replace the old shelf and window plates with velcro. To remove the old glue and such he uses something called Goop off, or Goo off, or something like that. He says it want marr the finish or anything and does a great job. He also uses it to clean up rubber tracks from strap on quivers like the Great Northern. I watched him clean up acouple of bows at Cloverdale. When he was finished they looked great.