Ok I need some help on this. Once the plane's pitch goes below the prograde marker, it will immediately pitch down uncontrollably. No flips or spins, just a lawn-dart. Meanwhile, keeping it pitched up will allow it to fly perfectly, no issues there. I've tried putting canards on the front, in the back, etc. but it refuses to even change it's flight characteristics. Putting that lift indicator in the front or back or on top (as in the pics) of the CoM also has no effect.