Yay. I'm so happy this forum exists. I'd gotten used to giving up trying to get lyrics updated since animelyrics.com never accepted lyrics changes from anyone but the original author in the past and, often, these people were impossible to find.
Anyways, for the song "Do it Minnie May!" from Gunsmith Cats, the correct romanji + kanji lyrics were posted about 4-5 years ago in the animelyrics forum. Why they were never actually updated is beyond me:
Google cache of the page has the lyrics as posted by "Barret" about midway down the page:
I have a copy of both sets of lyrics on the chance that the above URL fails to work, please let me know.