Was watching this Clinic by Ken Climo and Feldberg, and at this part they mention they don't like Soft feeling Putters, they want a harder, stiff and thick around the Dome type putter. This is so it feels more like a 1 lb. weight you are throwing into the basket as opposed to a Disc you are spinning into the basket.
Here's the part of the video I'm talking about:
https://youtu.be/NvUPKBXzkbQ?t=43m27s
Edit: Title should say "Thick"
Both of these guys used to putt with KC Aviars.