If your considering this setup you need to call Brent from Valkyrie. There isn't spine charts available for his system, and if you want to go full blown Valkyrie you need to use specific shafts and components. Definitely don't attempt to do any of it on your own unless you just want to screw in a Blood Eagle of comparable weight to the head your already running.I just re watched the episode and it is the Valkyrie Broadhead. They look vicious.
They aren't any heavier than any other setup, they only distribute the weight differently.I was considering them until I seen the weight. If I hunt elk I’d certainly be buying the full set up from them.