Mine is Moki powered. 13 pounds on my scale. Good vertical, hovers, needed tail weight...the Moki with it's wonderful radial mount is a pig. Powerful yes, but heavy, requires a long break-in period, and there is very little consistency from one motor to the next. I have my battery as far back as I could reach and still added about 2 ounces of tail weight for a rearwards CG (the airlpane is quite stable and really does nicely with the DG on the rear of the recommended point).

This airplane can easily come in at just under 12 pounds, perhaps even 11.5. The OS160 will swing big wood, allow nice battery placement, will break-in quickly, and yank the airplane around.

I agree with replacing the ABS...lighter and stronger. If you get it into 11.5-12 pounds, you will have a very 3D'able Pitts on your hands.

Mark

A picture of mine. I happend to have a Patty when the canopy went on a she looks great with her hair and earings)