in theory, game changer is great. however, some teams have to keep the book by committee (no set score keeper) due to coaches/ sponsors also being regular players. Some times that book can go a couple of hitters without being updated and has to be filled in after the fact because whoever was keeping the book was called upon to pinch hit. There have also been many events where we have played through the night and everyone's phones have died. Cant use game changer if you dont have power to do so. Game changer is easier when teams have someone designated to do the book and only the book but this isnt a luxury that every team has.