I recently installed the microheli CNC dual tail on my CPP and did use the CF tail fin. It bolts on easy, but adds some weight to the tail which is already much heavier with the dual motors. Another undesirable side effect is that it vibrates pretty hard with the rotor wash and creates a weird hum. Also installed the G90 at the same time and am wondering if the vibration may be causing it to not work that well because there is a lot of drift and some erratic behavior.