ok what would a treble booster plugged into a clean amp that is nowhere near breakup do? would i get hat creany, rich, sustaining lead sound of Brian May od you i get a slightly broken up clean sound with lots of cut through the mix?..
Not in my experience... Would give a rattier, rawer tone... These are germanium designs, so can be a bit buzzy/fuzzy into clean. Really great for taking a breaking-up design OTT in the best way (yet very controllable/musical via guitar volume).
I agree that a TB likes to see a dirty (gritty, edge of overdrive, whatever) amp. I think the Beano into the Zen or other overdrive would work fine. I like TBs to be in front of my dirt, but that's up to you.
My experience is this: Tone King Continental and BSM HS or OR = terrible results, harsh and overly bright. Victoria Deluxe and BSM HS or OR = HS was the perfect match with a strat quite possibly one of the best raw lead tones I have ever used, the tele produced a lttle too much midrange. The OR was good for both because of the tone control but wasn't as gainy as the HS.
Final answer is blackface eq'd amps sound bad, there is just too much high end treble on tap already, you need darker amps in order for TB's to sound their best. It also helps to use lower powered stuff because the TB's really add to the volume.