The evo.millennium was added to the evo.pen line after the original version became popular. The weight of the chrome adds much to the writing experience.
The shape of the pen is the same the original version and keeps your hand in its natural repose (relaxed) position. Just drop your hands by your side and notice the natural relaxed position they are in. That is repose and that is the hand posture you want when writing.
I have been told numerous times by clients how the evo.pen is the only pen they could write with due to pain from carpal tunnel syndrome, arthritis, and other types of hand and wrist pain.
The evo.millennium allows you to write with a relaxed hand posture.