Conclusion: We are classifying the Mizuno JPX-800 as, well sort of a sleeper. Very nice irons, nice lines, and great performance. It may not sit well for the better player, but will fit well into a large group of serious players not quite ready for prime time looking to improve.
Pros: The Mizuno JPX-800 iron is all about game improvement for the mid handicapper through producing consistent ball flight using MAX-COR technology. Set out as a Game-Improvement iron, this is certainly one to watch and one to try.
Cons: Designed for the average player, this one may scare off better players used to Mizuno blades. But don't discount the JPX-800 Pro version