Maybe we should make sure we are all on the same page.
Downstroke Blackout - as I understand it - is the loss of clubhead feel, which in turn, results in every abnormality of the golf stroke imaginable and then some - but in particulary, loss of a sense of where the clubhead is.
What you should be concentrating on is gaining clubhead feel. Now, whether it is via a specific pressure point or just an overall sense in your hands is up to you. Feeling the sweetspot is feeling the clubhead. When you throw a ball, you are throwing the center of gravity - the same applies with golf.
Shorten the stroke, slow the stroke or delay the release until you can feel positive clubhead lag pressure. See 3-F-6 for more. And of course, always outward, downward, downward, downward, and forward.