Scored rotor, ok to replace one side and one side only?

[Bewareofspoilers]

Title pretty much says it.
Am thinking of replacing my scored rear left rotor. Knowing that we tend to replace both of them when one is worn, but I wonder if the same rule applies to this case?
Both rotors are no more than 4000 miles old.

Thanks folks

Edited by Bewareofspoilers on Sunday 5th April 03:38

Edited by Bewareofspoilers on Sunday 5th April 03:39

[Bewareofspoilers]

stevieturbo said:

And what exactly are you calling a score ?

A light mark or huge gouge ?

What do you think?
It feels worse on finger than it looks