I'll agree that trying to force an actual jump isn't necessary. What you want to do is to maximize your weight shift while not worrying about falling forward. If that means jumping then that's fine, but many people, myself included, do worse if they force a jump. Many times just stepping through will give better results. Either way, learning to transfer your weight hard enough to force a falling putt without screwing anything else up is probably a good idea assuming you have solid putting technique to begin with.