Yes, the felt tips. Low RPM as B mentioned. Touch for a LITTLE bit, even less than a second and then use a cotton patch to rub off the rouge to see what you did. When you see that mirror shine, it's el perfect.
PS, not to suggest the "don't fix it till it's broke" thing, but you can do all of the feed ramps on your semis the same way. Works great, IMO.
Keep in mind you can always take off a little but it's a PITA to put it back on. Go slow, check work often.
Everything should cost $7 or so...