..best to get there for no later than 0900 or you could have quite a wait.
...when I was there last week to pay a fortune to have my UK ATPL(H) downgraded to a JAA CPL(H)
I was first through the door at 0830. I then found that the daily tickets started at number 7 - it appeared that the others had been collected the day before. 5 other folk sauntered through the door after me (don't know what happened to the other one) and were seen earlier than I was. If I'd known that you could queue-jump by briefly turning up the previous afternoon I could've saved myself a considerable amount of waiting.