Standard wear limit is 2mm from new... so if the edge is just minimal, break the lip with a small grinding pad... and run another set of pads. Make sure you inspect both sides of the rotor as sometimes the outside looks good and the inside is bad. A good rule on these cars is 2 sets of pads for every rotor (but in the end it all depends on your driving habits)... and if you have to replace one rotor... always change them in pairs (both front or both rear).
I think the wear limits for the 986 S is 28mm F/26mm R and the 986 Standard is 22mm F/16mm R.
Hope that helps
H
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