I can now add a little direct experience. To me, the grip on the 50r felt fine. I was really surprised how light the camera felt. It was handed to me with the 63mm lens. I wanted to try with the 110mm, which wasn't available. I tried it with the 120mm. The weight is almost the same (30 grams difference) and the 120 is an inch longer, which presumably puts the balance out further. All I have to say is that it felt fine to me with the 120 mounted and I did not feel the need for a bigger grip handle. The difference in weight of the 50r and 50s doesn't seem like that much, so I was quite surprised at how much lighter the camera felt in my hand. Seemed to be quite the winner. I understand the release date will be November 29th.