As I keep thinking about building bumpers I keep going back to an old question what is needed and what is overkill when it comes to extraction points. I've seen bumpers/rigs built and wheeled for years w/ one tow hook in the front and one in the rear and they don't seem to have issues, I've seen rigs running 2 hooks, 4 shackle mounts, and a reciever hitch, on each end. I don't think either of these two extremes is ideal but what is?