Due to my police background, my feeling is that the registration of firearms is an "investigative tool", but I'm STILL against the registration procedures!
Why? Well, just a few years ago, a female employee of the California State Department of Justice was making computer print-outs of gun registrations, which included the names and address of the gun owners as well as the guns they owned. She was giving those print-outs to her "gang-banger" boyfriend for the purpose of burglarizing those homes for the firearms. He and his gang buddies were responsible for NUMEROUS residential burglaries involving those targetted firearms, and only a very diligent detective began to put a pattern of those burglaries together.
Why do TOTAL STRANGERS need to know what I, or you, own? Sure, if I go nuts and use a firearm for some sort of criminal act, then I deserve to pay the penalty....but NOT until then! On the other hand, however, the "registration" of firearms is a GOOD thing if they are stolen. Personally, I'd rather secure my firearms properly, so that they WON'T be stolen....and total strangers that are working in an "official capacity" are taken out of the picture!
Six-in-one, half-dozen in the other, I guess! If the "registration" process DOES eventually lead to "confiscation", all of my firearms will suddenly VANISH! "GEE! I guess that someone stole them!"