The Forrester Messaging Nautilus is a sequential and logical process for creating audience-centric messaging that resonates. B2B organizations that are implementing the Messaging Nautilus and have traditionally tested messaging for resonance after all of the messaging has been created must revise the timing of their testing, because waiting to conduct this step risks delaying time-to-market. In this report, we describe three approaches to message testing and how they can be applied within the Messaging Nautilus methodology.