A quickie to test the stability and accuracy of Blender's tracker. There is some noticeable, yet very gentle sliding in that shot. Could be not 100% ground plane placement but also the lack of lens distortion calibration.
The biggest problem was Blender's horrible oversampling with raytracing. Barely usable. And with FSAA the composite made the vectorblur/soften-filter all wobbly so it was even worse than the normal OSA flicker. Solution: render bigger and downscale in the end.