I dig it! For me, doing this to my 72 was just to hear the amount of gain the EVH spec adds...In mine, the lows were too big/loose with the 100k/4 ohm tap NFB. I put the 51k(must've been out of 47k that day at the factory lol) back in.
My amp doesn't sound much like VHI tone but not far off VHII.
Euge has to have his tech drop that V1b cathode resistor to 820 ohm though...for me, that added a pretty good amount of gain. It's almost enough for 80s hard rock...maybe just an eq pedal bump and you're there.