7D focusing with Expansion

I just upgraded from a 30D and realized learning the new focusing system would be a challenge.  So I have been playing.  I was surprised to find that when using expanded AF that it seems signficantly softer than when using a single point (as in nothing much seems to be completely in focus).

I as shooting at 3.2 (so relatively narrow DOF) and ISO 200 so that the ISO speed would not affect the outcome.

Have othes experienced this or is it operator error.

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