so odd question. I know when I have replaced a distributor before, say a factory for mallory, I have to find TDC again and get the distributor pointed correctly since we only have 0 and 180 for how they fit in the motor.

but if I pulled a factory one from my car and another from another car, is the slot cut for the rotor matched to the slot cut for the gear?

or will it be luck of the draw?
will any factory distributor line up like the original or do they randomly cut the slot for the rotor?