If you got category 1 working then don't hesitate to buy the system. It covers throw for short and long distances, fast and slow shots as well as shots with english.
It even includes banking and positional play. 200 page PDF files with lots of videos. It'll take me months maybe years to go through it all.
What's funny is that I was able to use english with it right off the bat. I'm assuming (perhaps incorrectly) that it's because I use a LD shaft so I don't really need to adjust?
The first half of the practice I was really focused on making sure my back leg was on the right line, and my front foot pointed towards the pocket. After awhile, that sort of became automatic and I wasn't really looking at the shadows anymore. Instead as I stepped into the shot my eyes would focus directly on the object ball. Once set, I would check my tip placement, and then shoot after a few warm up strokes. That's when I started to have great success.
Another thing I was doing to make sure I was aligning properly was to just shoot balls in random order, but without any warm up strokes or adjustments. Just line up while standing, step into the shot, and fire away.