Pete, if you replace the grip and the new grip is around 75gms it should maintain the balance point as designed. If you manage to remove the weight seated at the end of the shaft, then you’ll want a grip around the 105 gm weight to not mess with the design.
This is where I’m still confused. By this logic you would think that the 140cc Tour SNSR contour grip (my favorite at the moment) would weigh too much, since it weighs in at 124 grams. But, you can go on Odyssey’s website now and order a stroke lab putter with that exact grip for $25 up charge. So, how are they maintaining the balance point? Or are they not? Hey, might just have to ask Sean and Luke this in a few weeks.