I had looked at the 576xp auto tune but I was a little concerned about the weight. It's pushing 15 lbs just for the powerhead. I did find a dealer with an older 7900 (non-epa version) dealer demo for $700. It has a 28" bar, a little bigger than I was looking for but it's rated at 6.3 hp (the new epa 7910 is only 5.7) it shouldn't have any problems. He said it has a few scuffs from being on display but it hasn't even had a half of a tank through it. The bar has one small mark on it from cutting through a log. It comes with the full warranty and all the tools and a scabbard. I figure it's about $150 off of a new 7910. So I gave him a deposit and next week I'll go pick it up. He's going to have the service department go over it once more to make sure it's tunes up (said it was last summer when they last started it). Hopefully it's not too much saw, after all my 357xp has always handled everything I've thrown at it. If not for the really big trees and not being able to cut quite fast enough I probably would be going with the 562xp. Not being a professional logger I'm not an expert at determining the exact direction a tree wants to fall. I'm pretty good but I like to make the back cut as quick as possible so I can retreat to a safe distance on some of the trees that are crooked, are leaning pretty good, or have an usual landing zone and could jump when they land. I really don't like it when a tree starts to barber chair even after doing side cuts just because my saw isn't cutting as fast as the tree wants to fall.