The only one I have is the BB Preamp. I think it's the best pedal I've bought in years. I actually sold two of my dirt pedals after getting this one. I've had it for 6 months and have not regretted selling the other two. I might sell off some more and get an AC or RC also.
I once saw a forklift lift a crate of forks. And it was way to literal for me.
I ran across a good deal on a used EP Boost awhile back and bought it. They're said to be very good for warming up a sterile sounding amp and a lot of players will run them at unity gain just for the effect. I don't see you having that problem with the '57 Twin. I play a tweed myself and so far haven't found much use for it. All the same, it's a very nice pedal. The construction looks first-rate and it sounds great through the Marshall MG-10 I keep in my shop. I'd probably leave it on all the time if I had a SF Twin or something that would benefit more from the effect.
I use a BB and EP in my rig... EP is always on, just adding some sparkle. I run it at 18v too with bright switch on FWIW. It's not even accessible - it's under the riser of the board. BB gets used for a Marshally creamy tone ala Clapton. It's more mid scooped than the AC is and a bit more dark, the AC has a beautiful midrange quality to it yet still somewhat dark. RC is very gritty, more similar to a Blues Driver or something like that.
I've tried the RC and AC and I really want both. I really like the qualities they have. I think using RC for low gain, AC for medium gain, BB for high gain, and EP for solo boosting would work nice on a small board.
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