Congratulations to YOU!!! That is good progress!
One of the physical differences between CP and FP helis that leads to ballooning is blade coning. CP blades are primarily a flat disk when rotating. FP blades often form a cone, with the tips of the blades higher than the center, like a cone with the pointy end downwards. This coning makes the heli more susceptible to breezes when hovering and more prone to the nose up balloning when in FFF.
This situation can be improved. A head stiffener helps reduce blade coning. This is an easy way to see improvement.
Higher head speed also helps. Something to do with the relative blade speed compared to forward flight speed. I really do not know the exact reason, but higher head speed helps. I cut down the blades to reduce their pitch, and went with a bigger pinion, and it helped hovering in breezes.