I was wondering about the longevity, but I am willing to re-coat each year now that I know it's easy. I was thinking about painting those brackets black as well....I wasn't going to sand them at all though, it seems like too much work. Geez, your boards must have been super rough. I couldn't believe how smooth mine were when I started...that is probably why it was so easy. I was thinking about some sealer or something so I don't have to keep oiling it, but I think I'll see how long I can let it go, then oil it some more, especially since I don't live on a lake and it doesn't sit in the water all the time.