I could never warm up to this guitar in its' stock form. So...... I had a Super II installed in the middle position. I had all of the stock electronics ripped out. All they seemed to do was pick up hum and radio transmissions. It's been completely rewired passive. The old "phase" switch is now the middle splitter. The old "active" knobs are now tone controls for the neck and bridge pickups.
Pickup selector is now a straight, 3-way. I'm not a fan of middle position out of phase notches on a 5-way switch.
It's unconventional, but, over the years, I always kept a mental wish list of features. I went ahead and compiled them into one guitar.