I think I saw the pin next to his ring finger. Based on his PAP (he's a very high tracker, I believe he's around 5 3/4" over), probably about a 4 to 4 1/2" pin-to-PAP.
I didn't see the MB, but he usually goes with pretty strong layouts, mostly MB stacked or close to it. I did see a weight hole, large-ish even, so the CG was at least outside the grip.
SH