Hi,
When I use tracker node with 2 trackers to stabilise the footage (Match Move, BG only, wrap) and then ty to re-apply the shake with transform node (connect center, size and angle to Tracker unsteady position, size and angle, set to wrap edges) the image does not quite match. It almost looks like the reverse transform is applied with 1 frame delay or something as when the camera moves quickly the problem is most visible. You can see edges don't match also the content is slightly delayed. See the example screenshot with merge node in difference mode to see the problem.
I am using Fusion Studio 9.0 build 13 but I had the same problem in Fusion 8 as well.
Thanks!