So much emphasis is placed on getting the right type of shaft in your irons and your driver. I was intrigued about what Breakthrough Golf Stability Shaft was doing so we got SeeMore Putters involved and got a custom install done on a Platinum M5 HT Mallet Putter. Here's the video of the install. So far I can see why they call this the Stability Shaft. It's solid and definitely instills confidence in your putting stroke. State tuned for more insight.