RE: LT-40 taking shape
Since I am a beginning flyer, I am not the best person to comment on aerobatics. Even so, after I got confident with the basics I tried a few maneuvers with my LT-40. I found it very hard to learn the moves simply because the plane really wants to fly straight and level if possible. There is a lot of coupling between yaw and roll, which makes rolls trickier than they need to be, as far as I can see.
Still, since more experienced flyers have said they can do aerobatics with an LT-40 I defer to them on this - but maybe it isn't the best plane to learn aerobatics on, simply because it is one of the best planes to learn to fly straight and level with.