always room for error.. until they have laser gridsl that gets the split second it touches the glove to the time it crosses over 2nd base they will always be off... its why i focus on game situation and basically tell catchers that you are one of 2 types of catchers... you're either over 2.00 or under 2.00... not a real big difference when you are talking .10 but the kids think there is... the main reason i try to time their transfer times indoors is to create urgency in getting rid of the ball as quick as they can... plus the group has 5 kids in it who are all competitive and solid.. so they love talking a bunch of smack to each other.. this is just a tool for me to stir the pot with them!