The best things you can do to mod the Bellari is to replace the piece of shit transformer with something better. Which is something that some of you guys have already done, I see, so good job fellas.
The next best thing you can do is to attenuate / pad the signal, in some way, right before it reaches the output opamps. You see, once you push the tubes and get some decent harmonics out of them, you're already clipping the solid state outpute phase. You can get a lot more use out of the initial tube gain stage by inserting some sort of pad between it and the solid stage gain stage at the output.
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