I’ve searched my butt off, with no luck! Can someone message me exactly how to wire this pot for series/parallel on my foundation please? Someday I will buy the books and educate myself. But for now, I need a “complete idiot’s” schematic please. I want to use the push/pull as the neck volume control. Thanks!
I used this exact same pot on my Forum Plus for series/paralleling the split coil P pickup and series/paralleled my Foundation with another brand of pot. If I was adept at using a drawing program, I would make a Foundation/CTS P/P specific diagram. Since I'm not, I'll try to coach ya through it.

Firstly, I used this diagram:
The trick/confusion with the Foundation is making note of which color is hot and ground on each pickup (since they reverse). Mech addressed this. On my 84 & 85 Foundtions, the black is hot and red goes to ground on the neck pickup, and red is hot and black is ground on the bridge pickup. The plain wires all go to ground, too. I assume that is the standard wiring for Super Ferrites. Given that, and by looking at the above diagram, just reverse the colors for the neck pickup on the diagram. (Double check on your Foundation by noting which color wire goes to the middle tab of it's respective volume pot.)
Now that the pickup wire colors are sorted, the trick with the CTS pot is that you have to translate the switch's wiring diagram to the row of solder through-holes just under the pot tabs. They are all labeled correctly, just refer to the actual switch terminals for reference and then solder the wire in the appropriate through-hole. For example, you would have to put a jumper across solder holes 1 & 3, neck ground (red wire) to C1, bridge hot (red wire) to C2, the continuation of the neck's (red) ground wire from 2 to a pot casing/ground and tab 4 is the continuation of the bridge hot (red wire) to the bridge volume pot.
It's kind of a pain to have to translate the wiring, but worth it. The push/pull CTS pot is really nice, and soldering to those through holes vs directly to the switch tabs is a little less dummy proof when it comes to ruining the switch from too much heat.
played all 3 of mine today
that super ferrite won the day for me
I played 2 of mine yesterday (the Dyna and the Forum Plus) and played my T45 tribute Ibanez the day before. Gotta say, the Super Ferrites nearly always win the day!