I used to use my 372xp with a 24inch bar for climbing, then I switched to a 562xp with a 24 inch bar for climbing and kept the 372 for more of a ground saw. I'd rather have a lighter saw at the end of a big climb when I am tired. I found the 562 to feel much lighter, ergonomic, and have plenty of power up aloft. However, I have never used the 576 so maybe I have been no help!