The standard split coil P bass is usually centered right at 28.5" from the nut on most every one I have measured, including my Forum Plus. Sometimes they might vary up to .25" in either direction.
I once measured a Patriot with the PU centered 29 11/16" from the nut. That's pretty much where a Ric bridge PU is located.
The slant T20/Fury seems to emulate the split coil's EA vs DG string reading. I'm assuming the slanted PU is about 28.5" from the nut to the center of the pickup (in-between the A and D strings)? I haven't had one in front of me to measure.
I have 45-105 Cobalt flats on my 84 Foundation. Sounds killer, pretty standard tension. They are about 2 years on the bass and have broken in nicely. The SFs have a little edge to them, but the duller sounding flats really compliment that.
On the one I measured, the T40 neck pickup is centered at 25 7/16" and the bridge at 31 1/16". Both are kind of far away from the standard 28.5" of the P bass. You could pretty much drop a properly located split coil P pickup right between the factory pickups! Those locations just don't have the same harmonic sound of a P bass. The T45 PU is right there at the P location and emulates a P fairly decently in humbucking mode and kind of sounds like a Ric bridge PU in split mode.
