Copter: Bicopter frame type tuning

Has anyone successfully set one of these up in Copter?

I have scratch built one, and its working,sort of…I cant seem to get rid of the tilt oscillations on the bench even with the lowest rate pitch P setting…any disturbance starts them going…I can spin up the motors hand held and am getting smooth yaw and roll stabilization, but pitch is oscillating badly…this is in Stablize…I will try in just Acro tomorrow…

there are several posts on Qplane bicopters, but nothing on Copter based bicopter here…