Joe,

Another question - the three early 18s on page 202 in Gaddis have very small sawteeth - noticeably different than today's sawteeth. On the early 18s that you have seen, are sawteeth typically smaller? Being that the 18 saw was specifically designed to cut aircraft skin, it does seem that small teeth would be more effective on aluminum - closer to a hacksaw. Do you feel today's larger teeth would perform as well on aluminum? It seems the larger teeth might not cut as smoothly and get hung up.