Just more BS. People have used LEDs in circuits for years. There's no secret occult hidden knowledge in tube amps. Everyone has the same ingredients to chose from for their personal recipe.
https://www.rig-talk.com/forum/forums/cameron-amplification.25/
Most of the story is here if you want to dig through it. Mark worked for Fryette and Bogner before he started his own company. I don't think he's on good terms with Fryette (based on posts at the old fryette users forum), not sure...
The three guitars Kramer made for EVH for that tour had Duncan '59s, but during the tour some things got swapped out. Any Kramers sent to Ed after that had JBs. Not sure what was in the 5150, though.
Yup, bigger is better. If you buy used just make sure the chuck is good. They wear out over time. Also, be aware that some drills change speed by moving the belt to different pulleys under the top cover.
The same way Chrysler can trademark Hemi Orange, and Fender can trademark Lake Placid Blue. Coca Cola has a trademark on their bottle shape, and McDonalds has a trademark on the big yellow M.
The only real mystery about EVH's Marshall at this point is how the Rose Palace got a '68 Super Lead in the first place. Leftover from Jeff Beck's tour, maybe?