Overcoming the Annoying Limitations of Slotted Screws

[NortonDommi]

Posidrive is like a Phillips but the tines on the driver and the sides of the slots are straight not tapered in an effort to reduce camout. The Robertson is far superior to both but being Canadian I thought wasn't well accepted in USA?
Quadrex is a different kettle of fish and I agree a bloody pain in the rear. Grinding the tip off a larger size Posidrive sometimes works.