Yeah, I don't have a choice about building it now. Someone at work offered to sell me his vintage 80's ProCo RAT. I asked if I could borrow it for a couple of days first, and I left $70 in earnest money. Then, like a complete idiot, I sent email to the guy telling him how great the pedal was and how I'd like to go ahead and buy it from him. He responded by saying he was now having second thoughts and that he wanted to try the pedal out again himself after 20 years! I'm such an idiot!!! Should have just kept my mouth shut. Anyway, the GGG pedal will be perfect because it's a 100% copy of the circuit used in the vintage ProCo RAT from the 1980's, and someone on this site offered to give me the LM308N chip I need to make this a perfect clone. I just wish that my soldering skills were better...but at least I got in some more practice with this project.