Has anyone had this happen?  Me and my brother will play online or ladder tag team matches and it will randomly switch players without us even pressing the button to call the other in.  I do not think it is faulty controllers since it happens to both of us and the one I use is only a week old.  It isn't too big a deal, but when online it can catch the other off guard and possibly get owned for the second he doesn't notice it's him.
 
Has this happened to anyone else playing tag team?

using L1 or the left bumper isnt the only way to tag. u can also tag by hitting 2 buttons at the same time (cant remember which ones off the top of my head), which i guess is how u tag on the arcade stick, thats probably what u and ur brother were doing

ah....thanks..  Guess we'll try not to button mash as much :P