For new screws in my experience pozi outnumbers phillips 20:1 at least, and flat heads even higher. Flat heads I only really see inside plugs which I rarely nee

For new screws in my experience pozi outnumbers phillips 20:1 at least, and flat heads even higher. Flat heads I only really see inside plugs which I rarely need to remove, even the outside screw for changing the fuse tends to be a phillips, if the plug isn't moulded of course.