Rule question: if the striker bumps with the aileron move, what happens to its normal move, actions?
Nothing. But it's possible there will be a ruling like for boost that you can't choose to execute a manoeuvre that bumps you.
I think this is simple. It's a maneuver, so just using the action on Daredevil, you can bump, even if you're already bumped.
So you'll execute the mandatory extra maneuver, and then regardless of whether you bump, you execute your regular maneuver.
Only part I'm unsure of is if you lose your action or not.
Current rules seem to indicate that if you bumped on either maneuver, you lose your action. Maybe it will get FAQ'd.