First, i must say that i do not thing that EC ever used a TB, i cannot hear one in any of his tracks (it's not always obvious though)
I am building modern treble boosters -with NO germanium transistor- and recently i tried to build a modernized Rangemaster, still a work in progress but i already sold a few ones.
Just to expose who i am.
I don't expect to sell a lot of my pedals to US considering the euro/dollar ratio and the shipping costs, so I'm not in a marketing, hum "path" ? (sorry i'm french) but actually i had to compare my work on the "modernized germanium booster" to a good RM son or grand son, and used an Analogman Beano as a reference (because one of my first customer had one and was willing to be my first tester, not too far away from me so we can meet etc, casual stuff....) so i can say : if you want a good (indeed great) germanium treble booster, buy a Beano.
Sound is awesome, construction is realy good, the man added a lot of dc filtering, a really really good pedal.