Guys, I don't need saws of this size for cutting firewood. I picked up the 505 from someone that needed cash, and it's a bear. The Jonsered 920 has a new piston and rings, the chain that it came with had the rakers taken way down and I dropped it in a piece of Oak and blew the rim in half. One stout saw. Send me a pm if you have an interest and I'll set up some pics. The 920 needs a chain brake, but don't they all?