Here is the deal. I got out on March 28, 2011. The VA claim says it was open on March 29,2011. Today I received my letter finally. It says I am 90%. The part that confuses me is it says "effective date- December 2011". What does this effective date mean? Does my back pay go from March 29 or December? If it is December, any idea why? They had everything they needed since March 29 so I am not sure why it would go from December. Thanks!