unfortunately the same holds true in reverse. Old nuovo or super record levers and newer campy dual/single pivot skeletons with weaker springs don't snap open fully in my experience. I was going to put skeletons on one of my bikes to get improved braking ,(also because they look sharp and not too out of place). But they don't release very well, especially the rear, and the levers don't snap back fully. That's how I figured out the newer levers must have additional springs...