I'll start off by saying that I appreciate the help I have received so far from this community. This is the first (of many!) dumb questions I'm sure I'll be asking as I begin my first project. I removed the sponsons from the Old Town canoe I am starting to repair (built 1961) and the canvas around them. For the most part the wood seems sturdy and does not seem rotten, though there are some strips that will need to be replaced. However, I've noticed that the fasteners used to attach the strips to the sponsons look like they are rusty and are "sinking" into the wood strips (although it could be that they were just driven in that far below surface to begin with because the strips do not seem loose). The fasteners used to hold the planks on the sides look fine, only the tacks on the sponsons seem to be this way. It does look like a few strips on the sponsons were replaced at some point, but not all of them. I'm wondering two things: - Would a different type of fastener (that was susceptible to rust) have been used on the sponsons when the canoe was originally manufactured? - Given the rust at each fastener, should I just replace all of the strips on the sponson? For perspective: I am rebuilding this for myself, and plan on keeping it. I don't mind doing extra work to prevent problems later.