A better mouse trap you say. How about no mousetrap. I trailered for about 5 yrs and 5 miles each direction at 45-50 mph. I trailered backwards and level wings. I just pushed the elevators up till they touched the leading edge of the flaperons. I put a couple layers of thick clear tape where the contact is made on the flaperons. The forward movement into the wind keeps the elevators pushed against the flaperons. I never had any issue.