As a kid, I only knew the basic design and the square. I almost always used the square, which I learned with two differences from the description on the website

As a kid, I only knew the basic design and the square. I almost always used the square, which I learned with two differences from the description on the website: I folded up the outer ~0.5-1cm of the wings as "winglets" (which seemed to help stability) and folded in a triangle of varying size in the back of the fuselage for trim instead of cutting ailerons into the wings. On a windy day in the vortices behind trees at my elementary school bus stop, I had such a square glide for what felt like at least half a minute (unreliable narrator obviously) after launching to maybe 3-4 meters. That lucky random walk wouldn't have worked without the low sink rate of a good square.