We had a priorty BF at Crystal palace scheduled for 8:05. We finished by 8:45. Wlaked through the Castle and waited underneath (there is a rope to hold you back). We told the lady there we wanted to wake Tinkerbell and she said to stand on the far left b/c that is the side she removes the rope from first. THe song came on over the sound system and as soon as it said something like, "have a magical day" or something she said we could go. Everyone raced to the rides except our 2 DD's (7 and 5). We went right into TB Treasuers and asked the lady if they could Wake Tink. She said sure and got them each wands.
My advice is to make a PS early that way you can beat everyone through.