I really don't understand how it could be "cram-and-forget" unless the students failed the AP tests. If they did well on the AP tests -- covering an entire year's worth of material in one day -- it was more like "cram-and-remember" and it was apparently a good way to learn the material.
I'm not sure what your difficulty is in understanding this. They cram before the tests in the class, then they cram before the final exam (or AP exam). The "forget" is after the AP test.
This naturally made students who crammed have a tougher time in later classes in college. I wasn't one of them, but I refuse to look down on the people who were behaving exactly as the teachers were training them to behave.
