catchup is fine for seeing presets…that works. adjustment on time delay is not a good idea (live situations). a better idea is to have sensitivity log (exponentially / stepped) programmed for say the delay time knob function/which requires the chip to view the voltage and adjust small amounts…with a time function that steps up the increments if the knob is continually turned…it is possible with a decent logic chip…not sure what hardware eventide has for their control interface.
It would solve the touchy control knob problem.
I don't have the equation off the top of my head.