I have had my K60 for years now and wish I could play gigs with it in fast mode but it ends up being too loud and not quite versatile enough for the venues I play. (if anyone has any slightly different advice about perhaps installing better volume pots in my guitars so I can get more out of the amp then I'm all ears to that too) What I generally do is set up the Komet on gradual mode so it's a pretty nice clean sound using single coils and a bit of grit with humbuckers if I hit it hard enough. Then I use a high quality OD pedal for my main rhythm sound, still leaving enough headroom in the amp itself, and use a good clean solo boost for my solos so they have a good real volume boost that gets above the rest of my loud band. Currently I am using a Fulltone Plimsoul as my rhythm dirt sound and I use an Ulbrick Megalodon as my solo boost. The Megalodon is perfect but I'm not completely sold on the Plimsoul as it can start sounding a bit fuzzy sometimes but other times it's great. Probably depends on the room. I also have used a KOT v4 and an Ulbrick 12AXE in the past, both of which I still own. Basically I'm looking for the best rhythm dirt sound I can get using an OD pedal (we play Southern Rock ala Black Crowes) while still keeping it fat and warm and as organic sounding as I can. Usually people probably play Komets without any OD pedals but just to humor me I thought I'd ask for advice on OD pedals to use with my K60. I will also start experimenting with using it in fast mode and using my volume knob but I can never quite get enough volume boost for my solos which is why I have it set up with more headroom in the amp and I have to use pedals for my dirt. Have at it Komet users, best amps IN THE WORLD!!!