One thing that I have come to notice looking at pictures of Atlantis'
stargates in space (Us poor sods in Australia are not even up to season
8 in sg-1 let alone Atlantis...) and of the new computer game, is that
there are actally 9 locking mechanisms on a gate. So far we have only
seen what the extent of 8 locked chevrons can do, so what about 9?!
Maybe the ninth season of SG-1 will shed some light on this if there is
any weight to this idea at all...