For most people putting is about confidence. Personally I'm more confident with an Ion in the wind, or a Gator if it's really windy, than a Magic. If it's all in my head then fine, but it still works.
Confidence with your putter is half the battle. You need to find a disc that you like the feel of and make some nice putts with and just work with it. Buy a stack and "practice makes perfect". After that confidence in yourself and the putter and that seems to be what it takes.