None except the glide rate. If you have a dead stick you really need to keep the nose down or they will stall faster. That goes for slow speed flying. If your turning and going too slow it will go into a snapping spin. The AM isn't too bad about that but it's how I lost my Krier Kraft, showing off doing a side slip landing. The short fuse makes ground handling a bit different but once you have taken off a couple times it's easy. Not much different then a Cub. I flew nothing but Bipes for a few years and enjoy them. I just didn't care for the small AM as much as flying the giant scale.