I had a Stability Shaft installed by BGT in my Stroke Lab Ten putter. Seemed very light so I added a SuperStroke Traxion Pistol GT 2.0 grip with the 50 gram countercore weight. The GT does not come with a weight but I added the weight from an old CounterCore Slim grip I had. Overall putter weight was close to original weight. Works well. Feels completely different from original Stroke Lab configuration.