Working on it right now, never thought it would though. A guy I met at the field told me how he did it on his. He kept adding tail weight, just a little at a time .25-.50 ounce. You want it so that when you go inverted you just barely touch the elevator. Once your at this point you know that your close. Keep adding, small incriments, but now is the time that you start trying to hover it. Eventually you should have it. Flatspin, on ur plane did u put both tail servos and the battery in the rear as I've seen others do? I have my battery back there but not my servos.

Tom