It's not a lot of work. You just put your phone somewhere and hit the record button....Castle would have been shooting from college. I know I don't shoot 80% from nba three in part (except for the corners maybe) because I tracked it years ago when I was playing in a league that used an nba three point line. Most courts I play are lined for HS... I'd be comfortable shooting deep HS threes at close to 80% in open gym. I'll shoot a video for you someday maybe... thats a lot of work.