By definition a "Fast Ball" is a pitch thrown at high velocity. That said, the spin/movement of a FB is defined by the pitcher. I would leave it up to your DD to throw what she deems appropriate. Ultimately if located properly the direction of the spin and the common nomenclature used to describe the pitch is a moot point.
I can't answer this because I don't know (re: movement on FB). Definitely will have her talk to PC about this...it could help her understand.
BTW - she is still a relatively new pitcher (started pitching live her Freshman year even with on/off lessons 2 years prior)...so there is definitely room to grow mentally as a pitcher. However, she has really come a long way in the last 2 years fighting for starting spot last season (and winning 1st team all district pitcher). And let's not forget...they cannot be "ON" all the time. Last night may have been one of those nights...but I wasn't focusing on that...more on the attitude of the catcher towards pitcher. I think that the pitcher needs to have the catcher on her side and vice versa.