I use momentary buttons to set the knobs on some of my modules works fine for momentary but when using the normal switch it can be a bit buggy. For instance using one knob to set another you will lose control on the slave knob unless you use member and local variables (can still be buggy) see here. Same would hold true for setValue() on the knob on cv/midi signals, when the knob is being controlled by an external signal you will lose control.
Animating the knob I think is only meant for Midi-Map, so using some sort of indicator around or on the knob would probably best suit for cv signals, as it is impossible for two way communication with the cv source output. Lindenberg’s solution for animating the cv is very simple and elegant!