I have an OCD, and I played with a Full Drive which was nice, but not for me, but I got to spend a little time with a Distortion Pro and fat boost today, and I gotta say, why didn't I try these earlier? They were awesome! The distortion pro was amazing> If I didn't have a few really good ones. It's pretty $$$ey, but If I were just gonna have one dirt pedal for studio work, that might be the one. Extremely versatile. Gets REAL thick, and I was playing it with a stock Tele through a little Vox crap amp at GC. I can only imagine what it'd sound like with a real amp. Fat Boost was killer as well. I had played the Choral Flange before, and was floored, but was looking for a separate flange and chorus and flange at the time, otherwise, I probably would have ended up with one. I need to get out more, and play more pedals. lol, but seriously, Fulltone kicks ass.