Method invocation raceway

Eric Gunnerson published an article in which he tests the different ways of invoking a method.

Pierrick Gourlain (no weblog yet...) updated the code to include tests with new cases: virtual, virtual+interface, static, MethodInfo.

I won't publish the results here, you should download the code and run the tests by yourself.
You absolutely have to try running the tests with a Release build and with a Debug build. What do you observe?
BTW, do you deploy your assemblies as Debug or Release builds?