FWIW
All 4 of my AR7000 Rxs have been updated with the CQ and low volt alert. I checked just one of them to see if the preset feature would work, and it did! With the Rxs lights flashing in bind mode, I pulled the bind plug, held the aileron and elevator stick to full deflection, turned on my DX7 Tx with bind button pressed...and voila! When the TX is turned off the controls now move to those positions.

So preset works on an updated AR7000.

JD