I just picked up an old habit and bought a can of Fast Fret. I used it on fairly new strings I had soaked in alcohol overnight. They were nice and bright but became noticable duller when I rubbed fast fret on them. I used it a couple of times but the strings just became duller and duller. Installed another, even older, alcohol-revived set on and now my brightness is back. What's up with that? I remember Fast Fret to prolong and keep the brightness of a strings. Now it just made my stainless steel strings sound like nickle strings. So will Fast Fret give me and retain a brightness similair to nickles, even though I'm using steel strings? Any thoughs?