Agree with Bruce on this one. The instructor was showing how to do advanced aerobatics, fine. But any situation can go bad and if its at a safe altitude, there is time to recover. The instructor should not have let the plane get too low without taking over and leveling the plane. And Bruce is right, sometimes the plane is in trouble and the student doesn't even know it. Thats when the instructor should take over and correct things. Sometimes it may be premature and the student was just about to fix the problem himself, but its a jugement call and its better to error on the side of keeping the plane safe. I only had one student that used to say, "you took over too soon, I was about to fix that". However my method is, I teach at the 3 mistakes high, when things start to go wrong, which means that the plane is losing altitude for some reason, I start counting(to myself). If the student hasn't started to properly respond to the situation by the count of 10, which should be lots of time to see that something is wrong, I take over because there is isn't enough height left to trust that the student can safely recover. The new guy that complained always went home with his plane in 1 piece, which is better than what happened when he was getting "trained" at the "other club and had to replace the entire plane! [8D]