NSA NSA Nationals

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I know that the PONY Nationals are a six game guarantee (3 pool games and 3 bracket games), but I have heard conflicting information on the NSA format. Is it 2 pool games into a double elimination?
I have tried to find this information on both of the NSA web sites, but to no avail.
Thanks in advance

 

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The NSA B Nationals in Chattanooga is a 4 game minimum....not sure how the pool play will be set up....