Yeah, I will stick to my boning knife for trimming and just use my slicing knife for the finished product. IIRC, he said it took him about 3 dozen or so briskets before he got comfortable using the slicing knife. It would probably take me years to become proficient trimming like he does because I don't make brisket often enough to become skilled like that. Also, less is more where I'm concerned when trimming a large cut of meat like that. I ain't making those big slices like he does.
I am not the Six Million Dollar Man, but I might need that surgery. "We have the technology, we can rebuild him!"