I went back and reread this thread. My question to you guys having problems with KE is have you followed the steps listed in the aerobatic trim charts or not? I suspect you haven't, but you tell me. Try reducing control throws, especially ailerons, and increasing EXPO for KE, it seems you're overcontrolling it. Instead of simply rolling into a KE from level flight, pull the nose up to 45 degrees, or more, and then roll to KE with lots of power. This gets the plane on it's side while minimizing the roll coupling of the rudder because this technique minimizes use of the rudder. Remember, you're trying to find that sweet spot. As you're finding out, it is a whole lot easier to find where the sweet spot isn't.