Can you comment as to the lateral movement of the mounted toms or the general wobble of the floor tom when moved by hand? I understand these issues won't manifest as in most playing situations, but I can see them making set up and positioning tedious at the minimum.
There is some lateral movement yes, but you don´t notice that while playing at all. Set up is a bit faster with these mounts since you don´t have to fasten a wing nut. The lateral movement is no issue. Regarding the floor tom there is not much to comment on. It sounds like a dream, no movement whatsoever during playing, set up is real fast.
I did this video a few months back. It shows how stable they are under playing (although the video is a sound demo):