I switched from the Daytona L55 - I don't see a lot of difference, but I'm just a mediocre putter 36% 1 putt avg. I still miss after 2 weeks, but I think I'm missing by less, maybe it's just an illusion. Some of my friends are saying that I'm putting better with the M1
I miss the 90 scale, for some reason I'm having a real hard time with the 100 scale. Sure wish I could get a chart for that.