That Jeep will never fly, Chuck. The only sign that the fin might be too small is the left turn as it leaves my hand. I can level the wings within 10 yards or less of the launch, so I don't think it's worth enlarging the fin. In flight, there has been no wobble, wiggle or any sort of "looseness" that I can detect. Very solid. The Demons are already in the car so I'll measure the fin when I get home from the field and post the numbers. Off to the field.