Any problems with clip-on tuners ruining serial numbers?

[ieso]

I have a few headstock clip-on tuners (PolyTune, etc.) that I use but have wondered if anybody has ruined the serial numbers by rubbing them off using them on PRS guitars?

For a while G&L used decals on top of the finish and clip-ons would just eat them up in no time flat (pun intended)

 

[Buck]

No problems here for over 20 years with any of my core models...can't speak to the SE line or matte finishes though.

 

[garrett]

The serial numbers are underneath clear coat, so you'd have to wear through that first. I'd think you'd notice if the tuner was destroying the finish!

 

[ieso]

Hmmm, I do have a CU24 with a satin finish maple neck. I'll keep a close eye on that one for a while