Bob and Darin,

Ooops, forgot to mention it. I placed a ruler on the bottom of the wing (had the ruler going chord-wise), and set my ailerons at neutral (parallel to the bottom of the wing nearest the aileron since the wing is semi-symetrical).

Of course, I could have screwed that up too

Bob,

My experience has been that a plane that is tail-heavy is still controllable (though a pain to fly), as long as you compensate with plenty of down-elevator.

Thanks for both of your suggestions. I will let you know what happens after I move the battery pack forward.

-Dan