http://www.guytronix.com The Guytronix Mod for the ProCo Rat2, features a trim pot that you can tweak the upgraded LM308 Chip with. Dig!
I used my http://www.suhr.com Suhr custom classic T antique, a Deluxe Reverb, and the mighty tight and always white coily cable of love from http://www.bulletcable.com
Mic'd up with http://www.telefunkenelektroakoustik.com Telefunken M80 dynamic and http://www.royerlabs.com Royer R121 ribbon mic.