not really on the JS, as it came to me that way. To be honest the 'hi pass filter' is a little lost on me - it's supposed to make hi frequencies come through better as you back off the volume, but I can't really tell.

The coil tap is cool though - you pull the pot and then middle position on the three way toggle uses the 2 outer coils, the neck position taps the neck PU but leaves the bridge as a humbucker, and bridge position does the reverse.

I did the same thing on one of my RGs - the pot is from Ibanez (the same one as on the JS - part number on the web). It has a 5 way switch but I soldered it up to work as the JS explained above. As long as your pickups have appropriate connections to tap, it should be easy.

I'm a bit of a village idiot with electronics, and I did it with a bit of help from Mr Internet, although I'd have to pull it apart again to tell you how - it was pretty easy though. Must have been if I managed it! :D