Any additional registration starts to cause problems. Did you miss the whole uproar about the newspaper that published the names and addresses of registrants on Rockland County? Additional registration serves no purpose other than to give the state a list should the time come that they choose to take action against gun owners. It doesn't prevent a crime form occurring and can, in fact, cause more problems when investigating a crime. What happens if, for example, I leave for work and someone breaks into my house, grabs one of my guns and shoots my neighbor. How did registration prevent that? Am I now in the position of having to prove that I didn't commit the crime? Have you never seen a government database spit out bad information?
It's an all risk, no reward scenario and, like so many of the other proposals, will do absolutely nothing to address the issue of violence which is the whole reason for having this damned debate in the first place.