In my early 20's I owned a venomoid western diamondback (not something I currently support) that I purchased from venomoid inc. It came with a paper showing when and who did the surgery. Also said to treat it like you would any hot, never free-handle and use a hook.
He was the meanest snake I ever owned lol.
I actually donated him to the Serpentarium in Monroe when I moved out of state, I need to go by there when i'm up to WA again and see how hes doing.