Pad printing from GMK is good, and for those that are really concerned about wear they can always do them as side printed.
Additionally, and I may have said so before, but vintage Cherry came in a myriad of different beige shades, so the best thing to do on a beige modifier kit would be to go all the way so there are not any shade mismatches. Or at least do all of tab, caps, shifts, ctrls, alts, wins, menu, enter, backspace... and np enter, +, -, ÷, × and numlock so at least sections are all uniform.