Removing a bezel insert - how is that possible without scratching the case!??

[007Sub]

Hey folks,

I understand that the way to remove a bezel on a sub is to put a knif btw the bezel and the lug and twist until it pops of. My question is: How on EARTH is this done without scratching the lug?? I can't even imagine that taping the lug would help, because the torsion from popping the bezel off has to be too much for the tape to withstand?

Anyone with experience care to share the trick?

Thanks!