Centering Rear Rotor w/floating calipers

[BBPanel]

I'm off by about 1/16" - my understanding is with floating calipers this shouldn't be an issue because they self-center. Any other reason I should be concerned?

[79 Camaro]

Should be fine unless the caliper mount is contacting the rotor. With a floating caliper you center the caliper mount over the rotor and the caliper floats with the brake pads.