I think I would have added a Knife Edge. With enough power and rudder I could get my LT-40 to KE but man did it take allot of aileron to hold it from rolling level from the dehidral.

Of the list manuvers I could do them all with the exception of the tumble and rolling circle with the LT-40.

In your description of your stall turn that is basically called a wingover. A stall turn in IMAC requires that the downline be flown within 1/2 the wingspan as the upline.

The way I do it is to climb and then cut throttle to about 1 or 2 clicks above idle. Now, during the climb I am watching the planes nose. If I went into the veritcal with wings level and no wind then right as the plane lost airspeed I would kick the rudder in the direction I wanted to go. If during the upline I noticed the nose going in one direction, that is the direction I gave rudder when the airspeed dropped off.

The key is to leave a little throttle on so you have rudder authority and to be as close to straight up as possible. Not enough straight up and the plane will nose over, to much vertical and it will roll over on it;s back. If you find yourself just doing a wingover you most likely started adding rudder to soon. If the flight path is to one side then all it will do is a wingover unless you give it rudder in the opposite direction and a quick/very short blast of power right as you give it rudder. You can also give it a blast of power (not full throttle but just enough to help it along) if you find that you need to help the rudder get it's authority.