I need some advice. I just wired up the electronics on a J-style bass. I'm using a volumn, tone and blend configuration. Everything seems to work but the sound is a little odd. When the blend is in the center position the sound is a little thin and there is a noticable drop in volumn. When I turn it either way the sound is fatter and louder. Whats up? Do I have the wrong blend pots? I've tried two different pots with the same results. Thanks.