Grove in center of both front brake rotors ?

[full foot notch]

See my thought would of been maybe the groove was there for assisting brake pad gasses so that the pad doesn't float

[ERASER5]

Originally Posted by full foot notch

See my thought would of been maybe the groove was there for assisting brake pad gasses so that the pad doesn't float

That too, but in the days of turning rotors, that groove was a simple visual cue. Groove gone and the rotor not smooth yet? Replace. No question about it.