Woo... Episode 2! This one's a two part episode because I ended up running long on both of the main questions. I think it's gonna take a few more episodes before I get the hang of keeping things short (i.e. concise answers that don't veer too far off topic and don't provide an inordinate amount of somewhat related information).
I may just need to limit the number of demonstration-related questions covered in each episode...
As usual, I uploaded the videos in 720p HD, so you may want to view the videos through YouTube directly rather than here on the blog.