The most important parts of the FI course are:
1- Flying from the right seat
2- Teaching theory and concepts
The rest are review of what you've been doing in ATPL theory and mainly your PPL. All I'm saying is that the course can be done in 4 weeks intensively, or longer as some people have that ability to learn. And no, it's not 10 hours of new material; maybe 3-4 at best. I'm sure you know how an aircraft stalls, or how a wing generates lift. The original poster must be mistaken because from my experience with several aviation authorities that a one or two week FI course would be audited and definitely suspended. I don't want to go off on a tangent; my point is that insinuating that a school was going to make him complete an FI rating in one week is impossible.