All, Forgive me but I can't remember who suggested a great way to examine your prop, prop shaft and zincs from the dock by making a sight tube made of 2" PVC or ABS pipe with a piece of clear Plexiglas at one end. I made one yesterday using a 48" length of 2" ABS pipe and one 2" ABS end cap and it works perfectly. I chucked a 1 3/4" Milwakee hole saw in my drillpress and cut the center out of the end cap. To that I glued a rounded and chamfered piece of 1/4" Plexiglas using acrylic cement applied via a syringe bottle that I got at the plastic store where I got the Plexiglas scrap. The Plexiglas seats in the bottom of the end cap abutting the hole I cut. The entire thing cost less than $10.00 and I made it in under an hour out in the garage. I actually bought a second end cap that I can pop on and off the open end to keep the other side of the lens dust free. Glyn Judson, E31 hull #55, Marina del Rey, CA