FAR/AIM ect. if you could read. FAA publications on weather, AIM procedures, Oral guides, Pilot's operating handbook, instrument flying handbook, handbook of aeronautical knowledge. These are all you need. The rest is things you don't learn in the classroom but from being up in the sky which is why you have those *pesky* hour requirements to get those ratings.

There is nothing you can learn in an aviation classroom you can't learn in a book. You're just paying to have it read to you. Chemistry, calculus, physics... Those are different. But a professor telling me the different types of fog doesn't do much.

My knowledge isn't limited to one book. It's limited to several books. Good ones. My experience is limited to the experiences I've had over the past 6 years flying from swamplands to deserts to moutains. So I don't know it all but I've been around enough to "know what I know" thanks to redundancy. I don't comment on the regionals or majors working manners. That's the limit of my knowledge. What's yours?? How much school debt do you have only to make how much as a CFI there? Since you're wanting to toss stones and all.