Hey Ironhorse,
I JUST got the email confirmation regarding the test for July 17th @ 8am. I just RSVP'd for attendance. And you are definitely right, been hammering away at the flash cards/notes.
As for the signals, theres no big secret other than doing what I did with the definitions: Flash Cards. They especially become easier once you realize the patterns/layouts. 2 1/2 weeks to go, keep at it everyday for at least 3-4 hours theres no reason why we wont pass this thing.