The JPX E500 is Mizuno's latest high tech driver. At 460cc and featuring Mizuno's UDS technology (Ultimate Dynamic Stability), the E500 performs with the MOI equivalent of a head measuring 500cc. The super large sweet spot and low centr of gravity produce trajectory optimized for maximum distance. The UDS technology enhances stability and maximizes the energy transferred on impact by minimizing the side to side and up and down vibrations. Review? saw a couple of these onebay last week and did a little digging around as I was in the market for a new driver and play Mizzy irons. The JPX E's and the Craft 425 are Japan and Europe release only. I was told it was a demographic issue. Because of the high price high 500's to low 800's when you include shipping) it would not be a big seller in the USA. Check outhttp://www.mygolfwholesale.comand have look at some of the other high end, Japan stuff. The Craft is a sweet looking driver. Nice JPX blades also. The JPX E500 was introduced at the Tokyo Golf Fair earlier this year. I currently have a sample sitting in the house, but the shafts are very soft as it's intended for the "executive" market in Japan and the rest of Asia. Mizuno will be introducing a new driver in August, the MP-600 Fast Track which will feature an adjustable weighting system. I have an image but have been requested not to make it public. It will be introduced with the MP-57 irons.