btw, drilling an access hole is common practice in PDR.
since you told your tech not to drill, then yah, there is no way he can fix that ding. i wont be able to fix it either without drilling.
if you can overcome that fear, he can probably fix it to about 98-99% if he's willing to take the time.
he would then either use silicon glue or plug. it's no big deal really. get a cup of coffee if you can't stand watching.
