There are some beta protocols with my unit re wind angle, but leaving that aside, my round downs were actually caused by sea state.
most were in fact not in wind mode.
100% were due to cross sea induced rig oscillation. And perhaps pushing a tad too hard.
The sequence would go something like this:
heading roughly WSW surfing on large (15-18') storm driven swell train.
leftover NW tradewind swell kicks stern to leeward
AP corrects course, but rudder action induces rig oscillation leading to occasional pole plant.
DH