I got my trainer off the ground yesterday and it was tail heavy so it was a hand full to fly. I put some more weight in the front and today it flew better. I still have a problem though, it randomly likes to pitch up, like a dolphin.

I have the CG about 3- 3.5 inches from the front of the wing and cant figure out what it is. Coming out of turns it is the same finish turning and boom up it goes. The only thing i can narrow it down to is a tiny bit of slop in the elevator, ( not much) checked the ailerons, same bit of play. I highly doubt you could get it out at all.

I bought the plane second hand, its a frontier 40. any help or experiece with these????