Rotor Damage

Having tittered at mincers coming down off Riv today, i had my front brake die and delaminate early into coming back down, and had to mince down on the boulders and ice with rear brake only (thats karma dooood)

how scored can a rotor be before its screwed?
im thinking, as im a front brake braker, i may swap the rotors, and put the damaged one on the back?
any thoughts?

Why not use it and find out? A scored rotor might wear pads out slightly faster but I wouldn’t have thought they’d affect braking performance unless they’re really badly scored. Might even be marginally better as it gives the pads an edge to grab hold of.

I’ve ridden disc pads through to the backing pad and beyond before now, and not noticed any deterioration in performance afterwards. New pads. Sorted.