Being new to planks and haveing no knowledge about twins . I had heard someone else say counter rotating engines redeuced the torque on thier electric twin. I now see many other problems in haveing CR engines and besides the "koolness"of seeing them in actin will not worry about it anymore. Reverse props and all that headache,,good info,,, and thankyou for educating me. Happy Holidays,,,manysmart people here THANKS,,,