I'm having a problem with the blend pot on my latest build. The pot does pan from pickup to pickup (on each end of the track, I get only the signal from one pickup), but at the center of the track, I get nothing. I figured the pickups were out of phase so I switched ground/hot wires on one, but that didn't fix the problem. I had an extra blend pot so I also tried replacing the pot - same problem.
Here's how it's currently wired:

That's per the aguilar wiring instructions, but with the hot and ground reversed on one of the pickups.
Anyone have any idea what I'm doing wrong?
Thanks