Looking at this again. Hmmmm! Well, 22% CG sounds ok, but what is the tail area, in % of the wing/flap area? Ted's Law says that the two percentages should be the same. And, does it have flaps, or no flaps? If no flaps, then 22% is too far aft, generally. How's the glide? What happens when the engine stops? Does the model balloon, or glide slowly and not very far? If so, maybe Mark has hit his head on the nail again!
My thinking was originally that neutral setting at the handle might not be the only thing that applies. If the overhang is excessive, it might make it difficult to make the model respond as expected, especially if the overhang has been adjusted differently, or bias at the handle adjusted, to try to equalize the inside/outside turn response. I have not used handles that had significant overhang adjustment (mostly Tom Morris kit handles, with about 1/4" each eyebolt), so haven't experimented with overhang at all, but mostly, it's bad! I'd say that if you've adjusted the handle to fix inside/outside turn, you should go back and adjust the airplane to fix the airplane's problem, and return the handle to minimal overhang. How about posting a picture of the model, and another of the handle? Maybe there's a clue there.
Steve