I tried grip puppies and found they made the grip too thick for my liking while not solving the underlying vibration issue. Instead, I added heavier HVMP bar end weights which greatly reduced bar vibration and eliminated my hand numbness:

https://www.hvmp.com/BMW-p/bmw-bar-ends.htm

Do you notice a difference in grip vibration between 1) the stock RT clamp & press-fit bars and 2) the GS clamp and traditional steel bars? I imagine that the GS bars would better damp high frequency vibration. My hands sometimes go numb with the stock RT setup and wondering if this change would ...