worries about the plates falling off on your head or toes. believe me, these are not an issue. yes, you have to wiggle the bar around a little to get it seated in the tray. yes, the plates do move a little on the bar and make a little noise like someone is lifting weights. well you know what? you are lifting weights. lifting weights is not easy, and it's not always quiet. the little bit of time and patience it takes to line up the plates is nothing compared to changing weights on a standard bar. the plates are secure on the bar, and i don't see how they 