Recently I modded a Behringer SY-1 for a dear friend, and although that particular mod recipe will remain a secret, I couldn't help but implementing some other mods on a second unit. I'll probably keep despite owning the glorious MSW SY-1. Mods include stuff I developed working with the MSW: square osc, filter resonance, feedback, VCO synchronization, some "hidden" modulators, and CV inputs for pitch, filter cutoff and VCA. And yes, the trigger inputs are gone on this one... https://maffez.com/?page_id=4843