Lot of noise here. But, at the end of the day, 8/1 is going to be the distinguished date. Following through with anything to the end is much more legally complex than anything because of proof beyond a reasonable doubt and how haphazardly written these laws are/were. It's not even YOU that would have to possess it ON said date, it's that IT must have been lawfully possessed ON that date.
Not to mention there is no official definition of what "Registered" means, plus the whole thing where we don't have a registry, and the fact it's not even accurate or reliable. Further more the ACTUAL previous legal requirement to a private transaction was a WRITTEN letter MAILED to the commissioner, not an electronic entry.
Defense says that IT was lawfully possessed ON said date, they now need to prove it wasn't for the entire 24 hours of that date. Not to mention the various states said item could be configured in at said time, the numerous classes of individuals whom could lawfully and/or unlawfully possess said item on said day. Defense does not have to prove IT was, they need to prove IT wasn't. How much resources they going to blow to prove the impossible?
Much more of slam dunk if a manufacturers records say it was manufactured post 8/1.
Any hood rats using 80% AR pistols for crime will get wacked with it as a new copy or dupe and plea out to a lesser. Business as usual. On the front lines it's generally understood that LTC holders stay within the lines, also that the laws are a pile of shit that are selectively enforced.