Two days is about all I could absorb in the first course. It's pretty intense. In most classes, you do your thing for a few minutes and then watch other people do their things until it's your turn again. In Rick's class, you're under the microscope all day, or half of all day if there is another student (I actually prefer it when there is another student).
Rick's method really is different from most other methods you might study. It is a disservice both to other methods and to Rick's method to try to blend them. That's why I needed to come back again and again: I would use Rick's method during the class and leave the class shooting pretty good, and a year later I wasn't shooting so good and I wondered why. Two years ago, Rick spent all of the first day and part of the second trying to show me that I wasn't using his method. When the light finally dawned on me, I suddenly started shooting better. This time, I had really tried to stick with Rick's method, and so it really was just fine tuning a few things that I needed to improve on.
Rick's method isn't for everyone, or maybe even most people, but it works for me better than anything else I have tried.