I'm in the midst of a small spot repair on a base/clear panel. (Hennessy front fascia) From what I can gather, you do not have to match the repair primer and base layers with the OE layers. The repair simply goes on top of what OE layers you have left after you have completed the damaged area.) If I have this right, you simply do your repair and primer where needed. This primer can be on the OE clear this is not a problem. Then you do you base layers, and these too can be over the OE clear. (you blend them just so they are smooth) Then finally, you clear your repair and blend into the OE clear. _______________________________ On final thing, where you cut through the OE base, you may want to cover that with pimer since base on base can have issues???