I'm not sure that changing a C to a K and adding an E is really the right way to go about things. I think that "mic" is not a word, but an abbreviation for the word "microphone", and should never be spelled "Mike", who is my coworker.
I realise that "mic" should be pronounced with a short "i", but the word "microphone" is pronounced with a long "i". Therefore, I propose that from now on we all pronounce microphone with a short i.
Really the biggest hangup when creating the word microphone, was probably the letter C, as seen in the word "mice". "Micerophone" just doesn't work because of the stupid "C" shifting from "K" mode to "S" mode. Stupid C.
Now back at that time, if had they decided to drop the proper latin prefix and just spell the damn word how it sounds, then it would have been Mikerophone. But then EVERYBODY knows Mike, so that's no good.
Wait a sec. Hold the presses. I take back my above proposal, and now propose that we change the spelling of "microphone" to "mikrophone", both being pronounced with long i's for no reason. That way, when we abreviate "Mikrophone", we get Mik, and adding the "ed" suffix is quite natural to create "miked".
Aw shit, but then we're back to square once since we all know Mike.
Perplexing.
Slackmaster 2000