Ok, here goes. I set up smccowboy1974's big saws. You boys on the west coast are probably hacking at punky conifers so I guess anything will cut. What we have here is a woodcutter that takes down large hardwoods in farm field fence rows. Our region is known as the centeral sands area. Field+sand+wind+trees= sand in wood. We have determined through use, not bench racing, that .404 skip small radius semi chiesel has the best durability (Oregon 27A). We take the rakers off a little more then recomended so he pulls a nice big chip, we are getting something done when we make chips and not dust. At the end off the day he will have more wood cut because he is not sharpening every 3rd block. Think about it, you are dulling a tooth very little more to take a thick chip over a thin one with 3/8's. Bigger chips = more work. Less teeth to sharpen also. And no, I don't need to hear how much faster full chiesel cuts. I know it does and I also know you CAN grind half the tooth away to get it to cut the way it did before if you run into some stuff in your wood, too.
You guys know what works for you, we know what works for us.