DD is 12 she's been pitching for about 3.5 years. When she throws her fb inside or high it has bullet spin most of the time. When she throws fb aways it gets semicurve spin. She's been working on a drop for a couple of years and it's ok. Sometimes it's flat and sometimes it has good down spin and moves a little. The bullet spin fb and drop are 50mph. She worked on a palm up curve ball for awhile and it's never took hold. So we started playing around with riseball about a month ago. Trying to get backspin on the ball. She gets decent backspin but can only throw the pitch about 43-44 mph. I've heard people say the rise takes years to perfect. What are some of you guys experience with teaching your DD the riseball. How long did it take? At what speed did it start looking like a good pitch?