A while back I posted a picture of some one and two man saws in the "It followed me home" thread. Some I had professionally sharpened and some I tried sharpening myself. The ones I sharpened worked ok but never seemed to cut smooth and as fast as I would have liked. I did a bit of research on how a saw works and how to properly tune one. After considerable filing I finally think I am getting somewhere. The saw in the picture was a rusty neglected wreck when I got it. I do not have a gauge so I just eyeballed it. Lubricated with some silicone, It cut through this 6 inch green cherry in under a minute with steady strokes and very little effort. Still have a lot more to learn but it cuts well!