this is the BiS list that I came up with for Summoner:

http://ffxiv.ariyala.com/NRWV

I am not sure if it is the most optimal listing, however it does achieve the accuracy figure that Summoner requires for Turn 8 & Turn 9. Granted it requires you to have at least one Turn 8 item in order to achieve the figure, but that is easily solved by using the Summoner's Ringbands in it's place.