New canvas went on last fall along with filler. Started the finish work this week. Put a coat of varnish on the wood and a couple days later rolled it over to apply primer. I found a nail head bulging out the canvas dead center about where the outstem will join up with the keel. I found the unclenched nail inside and pulled it in with some pliers. The end of the nail broke off leaving me very little to bend in. I was alone in the shop so I couldn't get an iron to the outside while bending the nail into the rib on the inside. I am hoping that between this nail getting protection from the outstem and/or the keel and bending it better once somebody is around, that this won't give me any problems. Any opinions about my hope or a better way to correct it?