Mill Valley will be utilizing the split format this year. I have read every post and I find the support and the data to be heavily in favor of this type of format especially if you anticipate more than 300 kids. A 480 kid tournament with 8 surfaces will take 7 hours. We had nearly 800 at Mill Valley last year and with 12 surfaces and it took us 8 hours and the crowd congestion was unbearable. We anticipate great success breaking from the "traditional" format.