Packard said:
My Blum screwdriver does work better on Blum hardware. But why was it necessary for them to reinvent the Philips head screw?
Because they suck, every last one of them sucks, and so does Henry Ford for sticking us with them, when everyone knows that Robertson was way superior. (still is)
Pozi-drive is effectively Phillips with the stupid removed. The tapered sides, of the Phillips, which allow for the cam-out, are replaced by straight edges. You get a similar ease of driver use, but a far better user-experience.
Some people just don't like (or have easy access to) Robertson (square drive). I use them every day and keep the same driver bit, in an impact driver, for
years at a time. The one I am using currently is 3 years old. It's a Milwaukee, that came in a 5 pack. I've given some away, because I didn't feel the need to hold onto spares so much. That one bit has driven multiple thousands of screws. The red plastic coating is gone from the shank, but it sill drives just fine.