Deflection Tests

Before I glue on the top, I wanted to do some quick deflection tests. I performed two different tests, both with a 2.5 lb weight... measuring the deflection in the middle.
Test #1 was supported at the top and bottom, it yielded 0.085" deflection.
Test #2 was supported at the upper & lower bouts, it yielded 0.065" deflection.
Ultimately, I should be able to come up with a stiffness number... similar to the Moment of Inertia. Then compare this to subsequent guitars I build.