That's funny since my Valveking is way too trebly sounding right now unto the point where I have the highs on the amp dialed almost all the way down and the presence never over half. I will only be able to tell once the Jet City arrives (sent out today, hooray!) and I had the chance to A/B the two amps.
p.s.: Dammed amp tech. Seems like the tubes he put in are some cr@ppy and cheap treble heavy ones. (the sound got annoying after the tubes got swapped some months ago...)