As requested by Woogie, here's a couple of quick and dirty clips of my BKPs and my Metal Muff pedal.
First up is my Gordon Smith SG-1, fitted with a bridge Mississippi Queen. The guitar is on full volume and full tone, though the Metal Muff and into one of my Laney Klipps at living room levels. I used my 1936 Marshall 2x12 cab fitted with castors and Celestion Vintage 30s. Amp and cab are running at 16ohms.