Neuro, have you flown an ace with either of the stir stick mods? I'm wondering if I no longer notice the porpoising, ie adjust for it without thinking about it, or if the mod solved it. Micro, have you flown the stir stick mods? DJStinger didn't like the first flight, but loved the second. I only have one plane that is not set up that way. Tim

Sad face, I just maidened an Ace with the double stir stick mod and experienced no porpoising. If your flying in basic bipe setup, I put a little up elevator to cancel the porpoising. I know it sounds wrong but it works. I didn't like the penny/dime mod because your adding weight to the plane. In bipe mode I think the plane weighs about 24g. A penny weighs 2.3g. You're adding 10% more weight to solve a problem with airflow. Try out the up elevator, or try out a double stir stick mod. I think you'll be happy either way. Tim