There are several members here who are both attorneys and gun owners. I am one of them, and I did a cursory review of issues with this bill in Post #19.
I didn't even get into the "UBC will never work without full registration" aspect. However, I do believe that to be the case, and that if UBCs pass, in a few years, we'll see calls for registration. A "the last law didn't work, so we need more laws to make it work" situation.
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.