We worked in class last night on how to make our reads sound natural, fluid, and persuasive. One of the main technical issues to be aware of in vocal production is the energy distribution.
Simply put, the energy in vowels and consonants is exactly the same in natural daily speech. Your "Day Voice" equally distributes the effort between consents and vowels. There is often a tendency when in front of a mic to over articulate the consonants. this results in a kind of violent diction that makes the copy sound read instead of idea driven and natural. Remember to speak to the end of the phrase and breath.