Has any one tried any of the online FIRCs, and if so, was it any good/worht the money? So far I've looked at Gleim and American Flyers. Both look pretty straight forward. However, I heard a rumour that they make some of the questions on the test ridiculously difficult so you'll fail and be forced to purchase their products to "help". Just an unfounded rumour I'm sure, but would appreciate any feedback.