If you want a wooly ol boost get the EP. The EP is nice don't get me wrong, but it was muddy with my setup. The SG sounds way better and. Is a lot clearer. Defined. And you can run it pretty high without killing your cab/amp. Bad a** with tubes. I'd pick this over the EP any day.
I can never decide.
One day I want a boost that is perfectly clear to boost my existing chain.
Next day, I want a boost that is a dirt box on its own.
Seems like this one can probably do both. Very cool.