Tone is overall not too bad... just need a mic and some tubes and less clipping on that ;)
When I first got my RYs, I didn't really like their sound much until I plugged them into a cleaner amp... Turns out, my problem was with my SL-X.... the Amperex 12AX7s gain up and compress way too early for a 4 tube amp, so I put the RFT 12AX7s back in and bingo, problem solved. Much better than a Duncan '59 too... the mids and highs are there and smooth on the Rebel Yells....