Uh. Yeah.
I'd love to give details but you would honestly have to ask him. I typically give some left and right limits along with a preference or two, then let the Smith do what he does. I also try to give them a ballpark ceiling I'd like to keep it under, which for me is about $5k, sometime that is including the base gun, sometimes it's not.
In this case, I believe he did some grip safety contouring, what brand he used for the manual safety I don't know. The half chop on the right side is at my request. Sorry that isn't a better answer.