I got a Fender CS strat with ash/maple and it has a JB and two 69 CS pickups. I haven't looked, but I assume it's a 250K pot for volume. It also has the S1 switch which complicates things a bit (for me!) The JB is very thick and singy. Has that real cool "wah" tone to bent notes. I love that. Even as thick as it is, this guitar produces harmonics galore, and they're clear and clean. Everywhere and anywhere, they jump out of this thing so fast. It's pretty cool. So what's the problem?.. It's just that for crunch type stuff, or any percussive type of riffing, it seems to flub or seems muted or something. I'm wondering if I go to a 500K for the volume, that might open up the bucker, but then again it'd make the singles real bright. I usually prefer 250k audio volume pots over 500K A, because they have a nicer taper to my ears, and they don't get as dark when lowering the volume. Would a 300K A be a good choice? Also there's a tone control wired to the JB. I'm going to get rid of that! I'm hoping that'd give me just a little bit more of the prescence or bite that I want, then all'd be well. finally maybe I need a different bucker. I really don't want to lose the cool sing that this pickup does so well, but I need a little more percussiveness to it. The harmonics will most likely come with any pickup, as they seem to jump out even acoustically on this strat. I'm not sure how to keep the S1 thing, if I switch pots. I haven't taken it apart yet to see if it's a dual pot, or just some funky type of pot. Looking forward to some suggestions.