SR385,
Put the thing on 220/240 volts, it does very well. Won't get any more out of it, just makes it easier on the house wiring (if yours is like my house wiring), and operates more efficiently, sort of. The plate voltage really gets 'stiffer'.
Yeah that's exactly my reasoning, I was honestly shocked that I could pull it through the same circuit as a 50A Astron supply and all the rest of my shack gear without tripping the breaker....just because it works doesn't make it right. It does a fair job of dimming lights if I run it at 700+. I generally just tune for max and drive it for 500 or so anyway.
I run a net on it and rag chew pretty frequently, so it gets a fair workout. So far so good.