I am getting my ball joints replaced next week. I have noticed some shaking this year that i didn't remember from last year. Thought maybe I had chucked a weight on one wheel. But it does smooth out some times too. I'll report back after they are done. I am getting new front tires put on at the same time, so they will have to re-balance them, so my findings may say what the issue was. I am getting un-even wear on my left tire.

As for the handle bar play, mine is about the same as what is shown in the vid. I checked it with a couple of other bike when i first got mine. They were about the same.
Ray