You wouldn't need an additional tone with the blend. Incidentally, I was wrong in stating that only one PUP is on with the T@10. Both PUP's would then be fully in parallel. The B (Blend) knob just adds resistance in front of one PUP. With the 1nF cap, it acts as a tone from ~10-7 (reducing the resonant peak of the circuit). Below ~7, it appears to dip the mids with the resulting peaks I had mentioned (at least according to the Guitarfreak app). Not sure just what it does without the 1nF cap.

I do think it could be wired as I mentioned once you understand the rotary switch configuration. You'd somehow route the blend PUP/HOoP circuit essentially as a buss send/return from racks 3 to 4 with the 4th rack common lug going to ground. It would probably be better to have the upper peak of the blend be at the ~4.3kHz bell tone. In that case, you'd want to add a ~500pF cap in parallel with the whole circuit off one of the racks for the combined pos's. You'd have to figure it all out on a sheet of graph paper. I'll have a go at it myself.

Add: I did design it on graph paper. The 1.6 & 4.5 kHz peak Blend/HOoP system for pos's 2 & 3 with a QT on pos 1 and a T on pos 5 should work. If it doesn't work as expected, a few changes can make it a standard BL Blend with the HOoP separated. If you're good with soldering and switch routing, you can do it. I can post a pic if you want.

Edited 1 time by gckelloch Dec 1 13 7:58 PM.