Tool truly surprising ease. As some people have said here, we must still aggressively projecting mass on the corner, but nothing to do with the energy expended with an ax (and especially the number of failures of the ax, which cause energy expended in pure loss). Just be careful to position the log and also to pay attention to wood knots. As also reported some users, the corner must get stuck hard. For me, when it got stuck, I followed the reverse operation indicated in the manual (back ground) and it worked well. We must of course have a wide enough to block the unit is stable.