I can not access the link, knowing you a litter bit that might be for the best.
Good stuff. I find it interesting how the various 'gurus' interpret these things. If you just listen to Miggy's words and don't try to read to much into them, I think they make a lot of sense.
Based on what Miggy is saying about not dumping the barrel too soon is one of the reasons I am not a big fan of some of the turn the barrel cues. IMO some of these cuse are misleading and easy to misinterpret, causing a kid to dump the barrel too soon where it's impossible to recover from. For example, somewhere in some thread on here somebody told me to have my DD use a long broom stick and have her turn the barrel so it hits the ground behind her. This just lead to a premature dumping of the barrel, extreme angle to recover from.