Hi. Nice to continue to see your interest in our feedback. Thank you. I'm the owner of a FM4 and I love its sounds despite the less good tracking with bass and the (sort of) limited frequency range. So, I had an idea for a product that I think would interest, at least, me. How about a rackmount edition of the M13 with improved tracking and frequency range for bass (a request mostly for the synths). And, in the top of that, an arquitecture that would provide something similar to the Octavius Squeezer, as well as some new inspired synths in models like this last one, the Freqbox, the Deep impact and, if it's not to much to ask, a multi-oscillator multi-waveforms (ramp up and down, triangle, square w/PWM and whatever more you remember...) synth. With what the M13 already has, for me it would be the ultimate bass fx dream machine. Sorry! I like to use my imagination.