This was my second plane after migrating from my trainer so to answer your question honestly "no" but please don't let my words defray you from purchasing this plane. The reason I would not purchase it again is because I have found another plane that flies close to the ST 60 but allows me to preform 3D and that is the AW edge 540 T. This plane is very docile in the air as well and I call it my glider with an engine.

The plane is by far stable very stable and the YS91 would haul it around greatly. If you are not familiar with the WM ARF's their instructions are lacking in detail most just show you pictures and you have to figure out how things go together.