I just bought a 555 proffessional thinking it was an xp. Runs great. Tons of power. Smooth and looks great. Was $780 out the door. For that price i wish it said xp but not disappointed after using it. I used my buddies 550xp this spring and fell in love with it but wanted sometging a tad bigger for my 1 saw plan to buck up wood on clients properties, fallen trees and fell meduim sized trees.
Ought to send these to Joe's and have em dyno'd to see what they're putting out. My 3 saw plan: 550xp mk2, 572xp, 592xp and all but the 592 have been ported by Joe and dyno'd
Nice lineup of rippers!!! Lovr my 550. Best 50cc saw available. Just gotta not bury it and keep chain sharp. Once warranty is up definitely getting it ported. The 572 is next on the list for sure. The new 562 Mk2 is coming out soon. Looking forward to seeing reviews. Thanks for sharing