Now that I posted what I did my foggy brain said all multigroove locks touch so the valves rotate but IIRC the two groove, square locks lock onto the valve and do not rotate.
Of course, I could go out to the shop and verify that by my doc and the warden (my wife) have banned me from the shop until I see the real heart doc.
Someone here should be able to verify that one way or the other so I’m not posting nonsense.
