I find "do small stuff" strategies unimpressive for several reasons. I took a minute to list some of them.
One, small stuff is easier to revoke next election cycle. (See Clinton administration)
Two, it often focuses on measures that don't solve mass shootings - more LMHP is good, but do alienated raging loners tend to seek mental health help? Background checks are good, but most mass shooters have no priors, and there are still private gun shows all over where federal licensee requirements don't come into play.
Three, multiple classes of rapid fire weapons may not technically be in a banned category of assault style, so gun buyers simply move to those models to build their arsenal. Also, how can I put this: CRAIGSLIST. And someone is always selling.
Four, waiting periods do decrease suicides, but mass shooters are often operating in a long-range planning mode. So, yes, good idea, but still not getting to the heart of the problem.
Five, 350 million guns. How can I put this: CRAIGSLIST.
I suggest this is why so many countries simply make all weapons other than hunting rifles and pistols illegal. And then follow up with buybacks and other legal tools to remove assault weapons from the public arsenal and make private sales a felony.