I want to keep this brief and concise. There are 2 large issues that made using this system somewhat uncomfortable.

The microtrailers tend to smash cut between their chosen clips very rapidly, and it can make the experience dizzying to try to parse what's going on.

When a microtrailer has something like text in the field, it is almost always unable to be read because the chosen clips do not stay up long enough.

I would suggest adding a fade in and fade out for the clips, in conjunction with allowing each clip to linger for half a second longer. Hope this stuff helps.