Harley,

Using Spektrum AR9000, so only 9-ch's.
The elevators are Y-harnessed together.
Matchbox on Flaps and Rudders(includes nosewheel).
Aileron channel = Left Aileron,
Aux2 = Right Aileron.

BVM's instructions are different than yours. Did you use a Flap-to-Flap mix?

BVM website .pdf
P-Mix 51 Flap-to-Flap Allows side lever to be deactivated.
P-Mix 52 Ail-to-Aux2 Slaves right aileron (Aux 2) to left aileron (ail channel)
Don’t forget – trim function on.
P-Mix 53 Flap-to-Ail Activate crow in left aileron with full flap position.
P-Mix 54 Flap-to-Aux2 Activates crow in right aileron (Aux 2) with full flap position

When I get home tonight I'll check my setup again.

THANKS, TOM