@spadesaddict I could grab 1-2 bags on a full table or a 12 bid table to set my opponents (unless they bid like 3-4 total which isn't worth it; I would have a higher bid, and hopefully more tricks). Bags aren't bad until you've got ten of them. And this is all, of course, assuming I don't have more than 3 books myself.
Anyway this video is about cutting, bidding and bagging is in another video. Most people learn these things from experience. This guy is just giving basics, nothing fancy.