where they are just about to change drastically, for example i modulate the the amount of wavefolding
with a sawtooth shaped envelope, i set the modulation amount to just where its about to gate but isnt
completely up yet, which makes the the gate open slightly more or less each time.
Also modulate the angle with osc1 and have it set at a point where its just about to change the sound
drastically (one of the stronger points when you turn angle, dont know how else to explain it)
Just examples, and im sure you could do this with alot of other modules too.

