Received the tool around noon last Saturday. Read the instructions and practice a bit on scrap wood. About an hour after receiving it I was confident that I could use the tool for my current front door installation project. The tool is used to attach the fairing. On the outside I used 2" nails since the trim was 1" thick. It worked great and made my job a lot easier. Sure, it had limited usability, but I didn't experience any jams or dropouts.