Choosing the Right Tone for Personalized Customer Communications

I just had a conversation with someone about this. If your customers were well segmented in order to send more relevant and personalized non-transactional communications, in general, would you suggest the tone be: 1-Directly acknowledge the segmentation as the reason why they are receiving the comm. For example- over the past few months you have done xyz with the software and other VP’s like you… 2- Subtly acknowledge it. For example-You may have noticed the improvement in your productivity from using our software…. 3- Not mention their segment and just get right to the message. I am thinking about the balance of TMI, length, relevance, confidence in the database…