I'm just slow on the uptake, a few bricks shy of a load.... I know, people mention a lot "I like to use X pedal for pushing the amp over, when it is just at the edge of breakup", and I thought I was doing that too, but now see I was not. I got a cot50 and liked it right away, but in one setup (Fender amp) using it a few times I kinda set it aside. I wasn't about to sell it, but in the configutation I was using it witht the clean fender sound, it was sounding a little harsh. It did clean up great with guitar volume, but there I had so many shiny new toys I just didn't spend the time with it. A year later, I am working with my Germino Classic 45 (JTM-45 clone) adn a weber attenuator to get that bloom and raw od, but I try different configurations (and this has to do with speakers too, using a used Marshall 4 x 12" closed back cab) and going back and forth with IT. Sometimes getting great tones, but (I think it is the speakers) there's a harshness that bites on the clean sound, just before breakup. So I get out my Zvex SHO, and my Marshall Guv'nor and the cot50. I turn the attenuator off, get it just under breakup, and try each. They ALL make it go into the wonderful sound I want, but of them, the Cot50 does it with THAT sound I want to hear. I haven't spent a lot of time tweaking the guv'nor (and it has SOMETHING too) and the SHO is just a bias knob (as is the cot50) but the cot50 just made it come alive. I was adjusting with it on, and finall getting that allman bros Fillmore East sound, in spades. I turn off the cot50 and my amp sounds okay, but too dark. This was what probably bothered me with the Fenders, as they are bright amps (the ones I have) anyway, and the cot50 took them too bright. I'm not saying cot50 can't work with Fender amps, just that...My GOD...it REALLY worked in my setup, with my cabinet, and an Epi les paul, (I usually use a strat) and suddenly THERE it WAS!! The SOUND! I am not sure why exactly I am writing this except that I am truly excited and wanted to share. The other day I played the Germino and thought about selling it. Now...no way. This is why I tend not to sell pedals I don't bond with right away. I figure there is some configuration where it is the perfect pedal. Also that with some pedals, you do have to use them with an amp just before breakup. I did this with mine, and after...attenuated just slightly, the volume with the attenuator. It changed a little bit of the tone, but I could adjust it. Then I find when I turn off the pedal, the Germino is set very much more bassy than I would use it...sounde like the cliche'd "under a thin blanket" sound. Not something I would want to play with a lot, but the cot50 interacts so well with the volume control that I don't think I want to have it turned off at all. I was having a hard time deciding whether to patch-cord the inputs on the Germino, and there is another variable in the equation...using the low or high input, bright or normal (normal on mine is pretty muddy with the speakers I use it with). And then there is the volume control on the guitar...in the past years I have become more and more a constant "tweaker" on guitar vol, and the pedal helps out there. Main thing I guess I am trying to say, it makes a huge difference which day it is, how your ears are, which guitar, where the guitar is set on volume and tone, which pedal. It's amazing that one can go from a non-impressive sound to perfect sound just by tweaking one or more of the above. I'm glad I kept the pedal!