I've gotten a few boards from Watts Tube Audio, and I see Ken sells a number of different 5W kits. I'd really like to build a British flavored low wattage amp, but there isn't a review/video/sound sample of any of these anywhere. They all seem to be designed with very similar specs and I'd love to compare the Supro vs the Mini plexi vs the Vox. Does anyone have any input on these? Has anyone tried any of them out?