In the late 50's or early 60's, memory fades after awhile, Victor Stanzel Co offered a 100.00 prize to anyone who won stunt at the nats. I don't think you had to win first just place. To this day it has never been claimed.
So to add my part of the story, That 100.00 at the time was about equal to all the money in the world to me at the time and since I could fly mono line, I figured a stunt pattern would be a cinch. Stanzel had a few 'trainer type' models to get you over the hurdle and I got one and set it up. Take off was a piece of cake, level flight was easy, the reverse wing over should have told me to stop, the 3 inside loops were round but not at all in place and I couldn't make small corrections in time. Inverted flight was ok. Outside loops were the same as the upright but scared the crap out of me on the bottoms as it felt that I'd never get it going back up. So it went to square loops and that was all it wrote, oh triangles are not possible for me with M/L and I guess that the resulting crash was a real lesson in reality that I wouldn't be bringing home any of that moolah. Monoline works in speed simply because of the limited control needed to fly one. And they are actually a fairly stable platform to fly.the comment about soft controls is reasonably accurate.
Dennis