The secrets to those over a saw blade is the teeth have to be shallow so it won’t take too much of a bite. 1/4 to 3/8” the most. Like the fin on the chainsaw blade behind cutter, ya wanna cut fast grind that piece down a little. The saw champions saws don't have that, it’s ground off completely, better have a GOOD engine and strong arm.
I did tree work with an old Biker from West VA. He showed me how to competition cut the blades, after sharpening, grind those Dog teeth down. And Hold On Baby! They don't throw sawdust, they toss 2x4s!
