It is a pain in the rear taking plates on and off all the time, it eats up valuable time and it brings in to play the risk that you will arrive at your destination without the plate you need, a screw missing from the plate or without the allen wrench you need to attach it. I like things clean and simple. That is why I went with the Arca-Swiss type plates and made all my gear universal. I leave the plates on all the big lens and the cameras, including the L plate on the 5D II.

Perhaps a griped 5D II would be diffrent, but the L bracket never gets in the way on the 5D II.