Mike, I prefer the flat evo Wizards as well. They're not common but you can find them flat. Probably hard to do when shopping online - I have the luxury of hand picking them from hundreds at the factory. The ones I throw are all flat.
I tried the Ion a few times, and you're right, they go far. Really far. I never got used to the lines they fly though. They're not quite the same as a Wizard. I didn't want to re-learn a putter, especially one I couldn't get in base plastic, so I was never sold on it.