That sure is a blurry picture and video -.-...Jumping the channels will be different depending on the Superlead... a '68 could have a shared or a split cathode, and they started off with only one .68uF (on V1), then a second .68uF (on V2). The shared cathode up until around early 1968 had a different channel 2 than the amps just after that... they added more gain and changed the frequency response which made the ch2 unusable for most in my opinion. When I was young, I could never understand why Clapton played ch2, until I learned that. I'm not sure we have solid enough proof what version EVH had in his main Superlead, but I am skeptical of jumpering chanels because that is less needed at those volumes and easily gets muddy at any volume. Plus, he could have done it on TV to keep the sound lower, but a blurry low res still isn't proof.