My Handicap index is 8.9. What I watch mostly on the P3Pro are the club face and club approach angles as well as the club head speed. I believe them to be quite accurate on the P3Pro. I'm not a long hitter so I rely heavily on consistent contact and straight shots. I seldom use the simulator function because I want more realism than I think I can get with the P3. I don't have the P3 launch angle camera. That is why I'm considering the GC2. I like the portability, outdoor use and simple setup. However, I sure wish the course packages were more competitively priced.