Pretty decent I'd say. This mission is interesting. There's a lot that can go wrong even if you do have a method to go about the different phases. Here the method I used: L - bottom left corner R - bottom right corner U - top center D - bottom center C - shot at center piece (d) - delayed (D) - really delayed (u) - slightly upwards Phase 1: L L L L L L U L Phase 2: R U L R U R R R(d) R(u) Phase 3: C C C L L L L R D(D) R(u) Of course, watching the video will help to see how these are implemented. I also guarantee that there are other methods (which could be faster and easier as well) so definitely experiment.

(If practicing for full game runs, I would recommend learning just how to adapt to things instead of having a method)