I think a real logger would laugh at it & a real big tree would make it run away & hide.
Anything bigger than it's grapple can handle & it's weight can off set would scare it to death.
I think they mainly handle cutting for pulp mills & maybe OSB.
I could be wrong wouldn't be the first time.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart