I think the problem is also related to the escs. I've got the elevon mixing on, and then gone in the "mix 1" and "mix 2" and set the ail-ele / ele-ail to 100% so full forward gives full power. However when turning, itseems to want to give more than 100% to either of the channels, which causes one of the escs to cut out. This only happens when turning full right (left motor is cutting out so it just stops). Turning left it behaves just how i want.