Re: Frank or Evan: Any chance of seeing a "hybrid" production model?
DiMarzio's Dual Resonance patent expired almost 8 years ago. Not an issue. Their horizontally offset coils (reduced string pull/increased sustain) patent expired as well.
Their Air patent dies in about 21 months, too.
Virtual Vintage (inductance increased by hidden ferrous material) has almost 6 years to go, though. 'Course, you could just not hide it. Exposed screws between the slugs/other screws... Too bad cosmetics seem to matter more than function, on something that can't be differentiated from 10' away.
Anyways, even if DR patent was still in effect, it still wouldn't cover the hybrid design of the forum, as it's considerably mismatched, rather than perfectly hum-cancelling. A different approach, that sacrifices a bit of noise resistance for more mids from the coil with finer wire.
If DiMarzio wanted to argue with the hybrid design, they'd likely lose on prior art, as that approach was done in the 70s. Oh, and their patented Dual Resonance in passives? It's just a passive version of what EMG was doing in actives, but EMG's old patent only covered actives... Which is rather funny, since most EMGs are extremely overwound for actives, with resistances high enough to be usable as lowish output passives.