400mm plane with blended winglets curled into a C. I’ve tried the winglets in the usual L shape and now the C. There appears to be a bit of improvement with the C form for the winglets. Reducing the elevator forces by flattening the tail pinch increased the glide slope to greater than 10:1. Over 16 feet the drop is a bit over a foot. Throwing the plane a bit harder and it rises, and hits the wall at about the same height as at launch. I need a really big room for a fair test.