I found a bit of time to redo the design of a ringmod I built exactly last year. This new one has an added lowpass filter, fine-tuning control and expression pedal support for the frequency. I've also improved the noise gate enough that I no longer need a control pot for calibration. It sounds much better! Carrier bleed is pretty-much non-existant even with high-frequencies. I've removed triange/squarewave blending because square wasn't very interesting and in fact worstened the bleed.
Over the next few days, I will be drawing up a PCB layout and hopefully building a final prototype before I make batches of these.
Happy new year!