software

I have an ash bodied CIJ Strat that has become something of a tone project. I bought a loaded pickguard from an '02 MIA Strat, but decided to replace the bridge to a Fralin SP43. I wired it up black wire to vol pot and white to switch, but experienced a thin tone and volume drop when in combination with the mid Delta Tone. Apparently the polarity difference required reverse wiring.

I wound up deciding on different pickups to replace the two remaining Delta Tones to warm up the brittle tone. I called Lew and purchased two APS-1's from him (Thanks Lew - the APS-1's are GREAT PUPS for the ash body), and he recommended putting the RWRP mid APS-1 in the neck and the neck APS-1 in the mid (with black to vol pot/white to switch) and reverse the SP43 wires (white to vol pot/black to switch) to account for the reverse polarity between brands and still get hum cancelling in position #2 and #4.

Everything sounds great tone wise and there's no volume drop, however I now only get hum cancelling in position #4 (neck mid). Any ideas how to get hum cancelling in both positions?

switch around the neck and mid pickups. That should give you humcancelling in positions 2 amp; 4.