My JMJ looked very pale and wan when it arrived and as I'm separated from the vast majority of my belongings (at least until next week) I wasn't able to do anything about it. However, as it's the only fretted bass I have with me at the moment, it's seen a lot of playing action and has picked up a fair bit of colour (although not nearly enough to look really nice). Haven't noticed any sharp fret ends as yet.
Small derail - One thing I am noticing with the JMJ body finish, however, is that it's developing some rather nice bright, daphne blue patches where the dulling coat is wearing through. I might have to T Cut it and make it all brighter as I rather like it.