my 2 penneth...
One of the best things about PR is that it does contain all the elements of other 'traditional' reading schemes (eg the Preview, Question, Read, Self-recital, Test model). In that way you can still enjoy benefits while testing the waters, gaining confidence, until you feel more comfortable and then start noticing how the 'whole mind system' supercharges the traditional processes.
If you wanna take exams by the seat of your pants, PR is the one for you!
Nick 
