All right, I’m getting a lot of dowvotes on Reddit because apparently people are saying clam shells are better for barrel nut work then finned upper receiver, reaction rods that to 2 unique and Midwest industries offer. I believe the finned upper receiver reaction rods do a lot better of a job keeping the barrel timed properly do you guys use the clamshell or finned upper receiver reaction rods when torquing barrel nuts and give me your reasoning please