Chris Webber was not an amazing leaper. He wasn't floorbound, but he didn't have dunk contest hops either. However, what he lacked in pure explosiveness he made up for with incredible body control. Here, you see how he uses extension to avoid the outstretched arms of Bradley and then used his incredible reflexes to throw the hammer down at the last possible second once he cleared the block attempt.
I know what you're probably thinking: "Yeah, that's nice, but what's the big deal? Lots of people dunked on Shawn Bradley." We'd argue you could say the same thing about climbing Mount Everest.