ORIGINAL: Arthur P

Get a 2X4 board, preferably yellow pine. Hod it up vertically by the bottom end with both hands in front of you. Rotate your wrists backwards and let that board smack you in the head real good. Now, shoot your bow. I guarantee you won't see any flipping or porpoising, at least for the next 5-10 minutes.

When the problem reappears, repeat the treatment. It won't help the arrow flight itself, but it'll keep you preoccupied so you won't notice it. [8D]

Well, you may not believe it, but maybe you should try some cedar arrows. I've had bows before that wouldn't shoot aluminum worth a darn but shot beautifully with wood.