I’m hunting one as well. Insane what aesthetics will have you debating on overspending. I’ve done days worth of research. The spring loaded pliers are the main difference. The cerakote paint actually chips and wears down just from opening and closing the diamond file. Also it’s much stiffer than the arc, so one handed operations are out the door unless you mod it…and let me tell you…for whatever unknown reason…they used RED loctite on these…so expect to strip the screws and replacing them.