@Slothrop @spooky I think the “bug” here is that there are 2 sets of callbacks, AFThrottleUp/Down and AFCoarseThrottleUp/Down. Both appear to do the same thing (ie. coarse adjustment).
Also they seem a little random / non-deterministic. It would be nice if each click was a predictable, fixed % of throttle-range … not tied to the millisecond-timing of the keypress.
(Very low priority issue … but maybe also very low effort to fix?)