The ion was my first putter.I carry two electron soft ion's.I love them both.They are very flippy.When I throw a forehand with it I almost have to throw it upside down.I have hit the chains with it before on a drive.It is a great driving putter and putting putter alike.I holds any angle you throw it on.It is an all around great disc.

This is by far the best putter I've tried. I also carry a 4S Wizard. The Wizard is softer but the Electron Soft Ion is as soft as I need. It performs well in wind and will hold whatever line on which I put it. As with all MVP discs, the break-in period is a long one. I don't know what flight pattern this disc will take as it breaks in, but I highly doubt it will be any less useful. I plan on getting a few more ES Ions. 

For my putting style, I rely a lot on the way the disc releases from my thumb. Having a somewhat soft grippy putter is essential for me. Proton Soft plastic was almost good enough for me, but if it got slightly wet became too slippery. I love throwing Gyro discs for long putts and used a Proton Soft Anode for a while. When the Atom came out in Electron Soft plastic, I liked the feel of it so much that I almost switched to it as my primary putter, but the profile was just a little bit too shallow for what I was comfortable with. 

With the Ion now available in Proton Soft, I have a MVP putting putter that I feel 100% confident with. This disc is super straight and releases my hand just right. Using it as my putter in league on Saturday I made nearly every putt. Great addition from MVP!