Best shot blockers are not the elite explosive jumpers (although it would help on rebounding and on the offensive side). The elite shot blockers have length, and are elite in the anticipation of timing the block attempt. When we don't explode over someone, you have to know how to be more economical in your moves over your opponents. Length, smarts, timing wins out everytime. That's what Mark Eaton did. Rudy's a better, longer athlete but he has similiar timing instincts. If he could get to Marks' anticipation skills he could be the best of all time.