I love the sound of the 2N2222A metal can tranny in this circuit!
I prefer the 2N2222 as well, I just happened to have a spare hole, a transistor and a switch. Sometimes I get carried away and make things switchable just because I can.
I got so excited about it, I built my friend one. When I told him about it he was like, "Why do I need a booster? I have an overdrive."
I had the exact opposite view when I started out, I had an overdrive, but wanted something extra. Then I found this great place and I learned it was called a booster.