If you post in an Instructor's forum, and say, "Hey, in xxx video, why were you doing such-and-such", you'll get an ANSWER. Usually within a day. And, in fact, in Lisa's forum, someone posted that they were having trouble doing something in one of her tutorials, and it wasn't coming out right. Her response was, "can you send me a recording or video of what you're doing so I can review it to try to help you?"
You can't get THAT from youtube videos :)
Quickly advancing from inept to semi-ept