There is nothing wrong with the 576. It is a better choice for bigger wood than the 372 IMHO. I prefer the 372 over it because the majority of the wood I am in is 20" and down. As far as the 575 well my dealer would not sell me one, said I would blow the crank bearings in a week! To be honest alot of them ran for a long time but some [well quite a few of the early ones] did not. I think that is what brings on the bad rap on the 576. And you have to admit the 575 did not last in the line up for a reason. The same reason my dealer stocks 2 carbs for the 562. Yea I got mine changed yesterday for starting/throttle response issues. CJ