ZT, you are more gracious than I.... and appreciate you taking the time to entertain Paul's hating.
I know a lot of guys with "cool t-shirt" backgrounds that suck as instructors. You'll note that most don't enter the instructor field, despite the tons of people eager to say they trained with someone with Tier 1 Experience. I also know a lot of guys with no background who are great instructors.
Paul, you are very confused about a lot of things. Your hate has made you drift a bit.... your post is inaccurate and baiting and I don't have time for either this evening. If you have anything to ask about the home study course, feel free to ask.
You've got my answers. CFS class is a pre-requisite. It is so for both safety and efficiency.