Turns out the included PH000 head does work with both screws. They are both the same size gauge; only difference is the length. I had the same kind of trouble as most others trying to unscrew them. But if you carefully apply consistent direct downward pressure as you turn, the screw does disengage and unscrew. It helps to stand up over the work for more leverage. And it aids in keeping the screw driver head in full contact with screw head, so it doesn’t slip and strip the head.