I put model J's and 500k pots in my mim jazz, with a 223 ceramic cap. I already plan to change the cap to a Mylar or PIO, but I want to know what else I can do to brighten the bass up a bit. It's very dark, almost muddy. The tone pot, also a 500, is basically an off/on switch from bright to mud, all in the last 2 degrees of turn. I AM playing a lefty, someone said something about having righty pots wired backwards? I didn't realize that would make a difference. I have it wired the same as it came from the factory, but maybe those were lefty pots and I put rightys in? The tone and volume sweep the same way as before, just not linear. The original pots are not marked as lefty, are they usually? One thing I want to avoid is making the bass clanky and fret noisy. I always have the Presence on 0 on my GK for that very reason, I hate fret noise. Is there a way to brighten the tone up without bringing out the clank?