We were playing small local tourney and one of the players asked his opponent if they minded using the magic rack. He made it available to to his opponent. It was a rack your own tourney. The rest of us playing on other tables were using regular racks. One player said he shouldn't be allowed to use the rack. My opinion is it was OK since he made it available to his opponent. My thought is it just gives you a tight rack that can be hard on some tables and that there is no advantage to using it other than having a tight rack. I can see as we have low ranked players in the tourney that they may feel uncomfortable with something new. Not knowing when it can be moved after the break. Maybe for whatever reason it can't be moved after the break and the opponent may have to shoot with this rack still on the table and not feel comfortable. Would it be like asking to switch the cue ball?