Just got back from Jax's 10/20/30. Jax has agreed to change his First Saturday's format to 60+30, following the NAG format. This is a great chance to practice before the big event. Go to Excel Chess blog.
There were so many strong players for the 10/20/30 and every round was gruelling. That is fantastic practice. Another great thing about Jax's is the culture there. The kids were all helping each other out and trying new lines and sharing into the night after the tournament.
I expect another strong showing for First Saturday. Last chance to get your practice in. 60 minutes is not the same as 90 minutes. Get a feel of what it's like before the main event.