What’s the best method for setting up throttle (collective) so that the difference between the various modes is minimal?
I’ve seen one suggestion to use the IM_STAB_COL_x to adjust it, but that wont affect the other non-altitude controlled modes? (Acro?)
Or should I just use the method suggested for multirotors?
http://ardupilot.org/copter/docs/ac_throttlemid.html
You will not have much luck uing the multi-rotor method because the old THR_MID param, and the MOT_THST_HOVER param do not even exist in helicopter.
The collective curve is set with the IM_STAB_COL_x params. It is a four-point collective curve and you can set it with as much expo as you want at center stick to make it easier to hover when flying manually.
Stabilize is different than Acro, and since you would likely not be happy with the Stabilize collective curve for aerobatics , you will see the IM_ACRO_COL_EXP param to set your collective expo for Acro flight mode.
Yeah, I realized that last night when I finally got to the workshop!.