You da' MAN, Ray! I am amazed how much altitude you could get without disaster. My hat's off to you!
Yeah, I was trying to nurse it as high as it would go a couple of times. What you see in the video is it. Nice surprise though, in the ensuing drop back down, it always pulled out very well, little mushing. 'Course its angle of attack never changed very much either!
Bill, shorter lines would doubtless have helped some, but realistically it did about as well as anyone could expect. I'm satisfied with its performance.
You might notice, whenever I tried to get in a low groove it got squirrelly. Maybe something with the ground-effect didn't agree with it. It sat fairly well at 10' or so; started searching any time it got below about 5'. I about did a touch-n-go a time or two.
It's been a fun project, worth the effort just to see it make its way around.