Red Devil made pliers with asymmetrical handles, as, I believe, Utica did also. Try the way they fit in your hand. You will find that they are very ergonomic. Box joint pliers are handmade. A friend of mine is a blacksmith, and discards maybe 75% of his efforts to make good box joint pliers. This may be an old effort that made it through quality control. My buddy discards pliers that I think are very useable. He has extremely high standards and rejects flaws I can hardly discern. Not everyone is so exacting. Utica also made box joint pliers, the only non-surgical maker of whom I am aware. Surgical pliers are box joint because there is no side force in the grip. Nice find. Now you will seek box joints!