[jritchie]

you are just to the left of the top of the key, 3 feet off of the 3 pt line, turned a little at an angle...the right arm WOULD be in the way to see, scorers table, and anything going on around midcourt...your not raising the arm until the ball is released anyways, how could it interfere with the shooter....you are stepping in/down on the shot too, to cover rebounding position etc. So you have to be able to make sure no one throws a cheap shot and if you turn your head a little to the right with your right arm up you have no vision thru your arm...nothing is happening to the left so why not use the left arm and it's out of the way.. I THINK, my opinion, that the left arm would be better to use on left side..and the right on the right end of the court