My latest project has been replacing a H/S/H pickguard in a Partsocaster with a H/S/S guard. Going from this: To this: The new pickups are a four-conductor Lollar Imperial, a Dimarzio Area 67 in the middle, and an Area 58 in the neck. I'm using a five-way switch with the 4th position being the humbucker split with the middle, which gives up a surprisingly good quacky kind of strat tone. The middle tone control works on the 1&2 positions (neck and neck/middle), and the bottom tone works on the humbucker. When I wired this up the first time, I used some brand-new CTS 500K pots from Stew-Mac. The results were so-so. There was a glassiness to the high end that I attributed to the 500K pots. I was getting good tones by rolling off the tone controls, but with everything wide open it was kind of harsh. I was also disappointed in the way the signal rolled off as I rolled down the volume knob. I decided to bite the bullet and order new pots from RS Guitarworks (the 280K version of their Superpot). I just got them installed tonight, and it made all the difference in the world with this guitar. The glassiness is gone, and the volume control is so useful now I can't believe it. I know that switching from 500K to 280K would make a difference even if I'd stuck with the cheaper pots, but I'm glad I tried the RS stuff. I also ordered 4 500K pots, so I'm going after my Tele Custom partsocaster with those over the weekend. Woo hoo!