Hello Charles and list, Yes, my finisher has done this several times, once in a bid to remove something migrating up through the finish, and other times to get through a general mess. Each time he has been able to build up the surface with spayed coats of auto-body surfacer, and then standard undercoat/topcoats. Very successful, ending up with a beautifully smooth finish, but costly. Drastic steps sometimes bring wonderful paybacks; we often try to avoid these procedures, but we shouldn't be afraid of them. (As someone else mentioned about replacing back actions with a new Renner kit) Ralph Thorn
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