Hey dukeh62, My responses are as follows: 1. When I want maximum crunch, I set reverb to 0 and it is inaudible to me. I have used my Strymon Flint in lieu of amp reverb with great results. I can't imagine it being a problem with any external reverb. 2. I don't use fuzz pedals, but my Telstar sounded great when set for edge of breakup and Timmy engaged for an awesome crunch rhythm / lead solo sound! My mini TS also sounds great. 3. The edge of breakup tone offerings are amongst the best I have experienced. It responds nicely to the touch and cleans up when lowering the guitar volume. The best part is that it offers fantastic tones anywhere from beautiful cleans to classic rock crunch and is surprisingly versatile with its minimalistic layout that is super easy to dial in!