hey, you fill that mac up with turbo blue and nitromethanol and it will outcut ANY saw you have. i run a 36'' canon bar with .404 square chisel on mine, with the rakers set at .060''. the problem comes when you try and start up the "monster". i have a 50' starter rope that i wrap around the rear wheel on the truck. one guy holds the saw, while the other hits the gas on the truck, thus spinning the truck wheel at the high velocity needed to get the ''beast'' fired up. it is quite an ordeal, and the seller should be warning any potential buyer of this problem. whew, NOW i'm thirsty..........................................................................................