I've got a bound 69' Jag in the shop...Big block plastic inlays....The customer would like me to change the radius to 10 inches...I know that they have a pretty good thickness, but from experience, I know the look of them may change from taking this much out of the middle of the inlay...I ideally would like to remove them, do the radius, and re-inlay them....He loves the guitar, and is planning on never getting rid of it, so getting a non-vintage replacement is not his answer...What did they glue them in with?...