since when was 1/1000 shutter the slowest possible shutter to freeze sports action? is this a new thing because i have definitely froze action shooting soccer at 1/500
I agree completely with him. Sure you can get a few shots here and there of action frozen at 1/500th, but I guarantee you that if you shoot enough action and need 200-500 shots of the game, a very small % will be detailed at 1/500th. My personal minimum is 1/1250th. Now that I have more ISO headroom, I will go up to 1/1600th.
Getting detailed stop action of sports is as varied as lighting conditions for any given shoot, it is various, both in the action for AF and the speed for shutter.