I've got RGs with the Lo-Pro and the Original Edge. The Lo Pro is less obtrusive and works really well. What I have found, for some reason I can't explain, is that the Edge "flutters" better. Whether it's the extra weight higher up that helps I don't know. It oculd just be that the Lo-Pro I've got is quite worn as it's on a well used guitar.
Personally, I prefer the Original Edge.