I recently added a couple more putters to my bag to work on my short game (and build inventory). Both hard and Soft Magnets and a Soft Challenger. I've been putting with a hard Challenger since April and it didn't take much to get me to like it. I played a round of 18, putting only with a Soft Challenger. Shot a Plus 10. All my putts between 15 and 25 feet just seemed to bounce out, Even on the strong side. Seeing that many 4's on the card was not pleasant! Playing with the hard and Soft Magnets, I see no difference between the two. Those discs just get sucked into the basket. Hard and Soft plastic. And the Soft magnet just feels killer in my hand. I'm just wondering what your opinions are or what plastics seem to work better for you.