Someone told me that if you buy the 6 discounted members rate GA's in advance, you can then get away will walking up to the agte and getting six more as your membership card hasn't been stamped and they don't have a computer connection in the ticket booths to check if you've already had yoru allocation.
Not sure if it's true but it seems to make sense knowing how disorganised the ACO are!!!
It does work ;)the only problem is that they punch out the allocation on your membership card which does not have a hologram or any real security markings on so l suppose someone could copy a card and get into the ACO club house aswell, time for a play with the scanner me thinks