Hi all i have a v2 pro with ar7200 on it. First i had it on a modified beam 450 rjx head flew spot on. So i bought the 450 pro V2 and DFC head and off we go now it flips and rolls spot on but in inverted flight it feels very vague and pitches down in the turns ? right way up no probs I have sort of got used to it but it's not as planted as my other beasted models and does not fly anything like the beam. The obvious difference is the location of the fbl unit it was low down under the main shaft on the beam but it's on the trex its on the top of the boom. Same blades same servos same head speed. Maybe the extra 4inch of distance is increasing the resolution or the response of the unit. I have tried turning pot one up but didn't really improve things ???