I ended up riding with a guy on a 575 on Sovreign trail at Moab...just going the same way at the same time...me on my Nomad. I talked with him a good bit and we got to see each other ride some of the gnarlier spots. My Nomad had a 160mm fork and he was running a 140mm fork. My take on the 575 is that it's not really an exact competition to the Nomad...probably more to the BLT2. My Nomad was way more competent in the rough sections, and his bike appeared easier to climb the uphills...but not by much. I think it will depend a lot on what kind of riding you'll do. For a bigger hit bike, the Nomad is extremely efficient. The 575 is lighter, and that is its advantage. It's not a bomber bike IMO...at least not compared to the Nomad. The Nomad probably bridges the gap between a bigger hit bike and a trail bike about as good as any available.