my two cents: try your best to read with your brain not your pen!! Don't adopt any complicated notation system unless you're already used to it. Otherwise, try to eliminate any notation. It works for me after a long time struggle.
It's a great idea to try different methods in RC, but bear in mind that you should settle only for what works for you. If someone swears by a certain technique, experiment with it, but don't adopt it unless it works for you. Good luck
@Harvette 7Sage has done sales for each PT as it's released, so unless 7Sage decides to do a huge promotion on a set of previous PT's, I think they likely will not.