I like the suggestion of using a 3 way nail polish / file. I'll have to try that. I have handled these in the past and it seems to me they might be more akin to using a stone than simply polishing... but i"m no expert.
I have used my Dremel tool, the felt buffing wheel, and Flitz compound on several of my Glocks with only positive effects.
I have to wonder if some of the Dremel hack jobs being referenced involved the grinding wheel. I feel like you'd really have to work hard to screw it up with the soft wheel & polishing compound.
Good men must not obey the laws too well.
~Ralph Waldo Emerson
Any fool can make a rule, and any fool will mind it.
~Henry David Thoreau
Remember always: The government is not the country!