I bought a used MF-101 a while back and keep it in my studio and use it from time to time on bass, guitar, etc. I DO like what it does (being an old analog synth guy). But, my unit is noisy as hell, which has kept me from taking to sessions much, or commiting it to my live setup--I sorta just don't trust it. The noise isn't even consistent. Just the other day, in Bypass mode, it starts hissing like a cobra, and that's sitting on my desk in my studio where it usually behaves OK. Is it just mine, or are these babies just kinda wild like that?