The closest I came to any sort of "course" for any of my instructor ratings was to spend, I think, 2 days at Lasham in preparation for conversion of assistant to full cat glider instructor (I left the country before completion).
There are two essential and distinct requirements for being a good flight instructor:
1. You have to be proficient at flying
2. You must have an aptitude for teaching
I don't think any course, however long, is going to provide both. Neither can be learned by rote. If you already have both then the course length won't make any difference.
It seems far too easy for pilots who have done nothing except go through a ratings mill to become instructors who then turn the crank at the same mill. They have no experience to pass on except how to pass the test.
Last edited by EXDAC; 25th Jun 2021 at 01:26.