No need to create any new note taking methods...the Superlearning manual already has a perfectly good method! Modify it and you're set.
Replace Einstein Riding A Bicycle with !
Replace Einstein Jogging with !!
Replace Einstein With A Lightbulb with $ or !!!-> (even pages/left hand columns) or <-!!! (odd pages/right hand columns).
combine this with lines in the outside columns (or square brackets like I said before) and you're set. See pp40 - 42, 51, 68 - 69, and 81 for examples of what a PR-style underling page would look like.
That way, you can still PR/RR the book, and you have your anchors on where to dip. Plus, it's easier to write ! and draw vertical lines than underline all the time.
Of course I'm probably telling you this a week too late...