You can't have your pitcher throw at the batter. But you can ask your 1B to fire a ball to your 3B after an out and have your 3B "miss it". Then have your pitcher ask him whether it was inside or outside?
Spectators do not make plays! If the players want to try a trick play or confuse the other team they run the risk of having the umpire call them on it or having the opposing players police them with a pitch in the ribs or a hard tag in the face. Your time playing game is over.
It would be easier to understand if you were doing this to your own team to better prepare them mentally. Trying to confuse them for the purpose of teaching them to block out everything from the stands. But to do this to the other team is classless.
Ive used the heater for the last 2 years. Its rather cumbersome to lug to the practice field. It works well in the cage covered up for easy use. I especially like the feeder since it allows me to focus on the batters form. We're still hitting the 11' balls at 12 and 13yo. It wont lasy...
I think this bat provides a good value if you don't care about always having the latest model year. Sometimes price has to win out over having the "latest and greatest". I recently bought one for my DD and it seems to have good pop and she likes the feel of it (31/19 for my 11YO)