Another thing is, was there a EVH 78 pickup in the Franky?
No there wasn't, it's some sort of 14K A2 job.
The Floyd might cause a pickup swap, but dudes/dudettes put PAF like pickups in Floyd equipped guitars and they can work ok.
The EVH 78 is basically a PAF with some more winds and even some stock original Gibson PAF's are wound higher that the "EVH 78" with some stock original Gibson PAF's hitting the 10K region.
As Seymour said, he was doing a lot of odd jobs for EVH and one of those jobs might have been rewinding a PAF to the "EVH 78" specs, but that pickup could have been for any of EVH's guitars.
Maybe this "EVH 78" pickup is just a generic bit hotter PAF, aimed at PAF EVH believers which were a market demographic to target in 2001 when the pickup was released, it was even called "Evenly Voiced Harmonics" or some BS like that obviously to try to avoid EVH's legal team, and EVH did nothing and couldn't have given a fxxk about the "EVH 78", but if EVH wanted to then he might have had a case about Seymour using his "EVH" name again, but EVH didn't give a sxxt about the "EVH 78".
There was a 13K/14K ceramic Mighty Mite in the Destroyer for VHII, and not a "EVH 78".
EVH had a whole collection of Mighty Mites and one of them (single coil) ended up in the Franky because EVH had a whole array of Mighty Mite pickups.
Then in 1979 Seymour tries selling a EVH pickup (using "EVH" without telling EVH) and Seymour had been doing rewinds for EVH as far back as 1978 and also probably 1977, and so Seymour would of known what EVH walked out of the shop with, and Seymour's EVH pickup was the Custom, and EVH got his legal team on it straight away.