I'm now a member of the V803 club. This, thanks to a TB'er who made me a terrific deal on one he tried out. I love the amp, the way it looks, everything. I will give you owners something to try that I recommend - front the input with a tube boost pedal. I'm checking out two right now, the Edison and the More. In conjunction with the Warm and Qtube settings and input gain, I am finding any number of overdrive shadings and colors. It is fun to goose the input limiting with tube gain. I can hear the limiting hit. For some folks, it might even replace a separate compressor pedal.
I'm also trying combinations of one of those two pedals with various Lightning Boy transformers, before and after the pedal and getting some really nice tones. Just thought I'd share this.
Great job on the V803, Pat Q! It was well worth waiting for.