Jawbreaker Challengers. This is coming from putting with a disc with no glide for a long time, Ringers, to a slightly deeper rimmed, but still shallow Mercy. Felt I was putting harder than I needed, liked the look of the Jawbreaker plastic, and gave the Chally a try. Perfect amount of glide for my snap/spin putt.
Not stiff like the stack of Zero Hard Mercy's I will be shelving (love that plastic though...), but my putting accuracy is way up. The regular D and the CT have the same glide as a McPro Avair, which for my nose up style of putting float up too much. The Jawbreaker plastic is dropping just right for me. And they really catch. I've had plenty of bad putts that have caught just a single outside chain, and still folded in.