Good Morning Doofy . I might be wrong here but the only use I've seen the carbide chains advertised for is fire departments. Where they most likely will run into something metal. Nails, conduit, roofing etc. It would be great if somebody could tell us that under "normal" use - they will stay sharp X times longer. I'm right at the point where I need a new chain for my small Stihl. I'd buy one if I knew the "sharp" would last longer.
I just finished cutting all the small pines on both sides of my driveway. I have a mile long driveway - completely covered in pine chips now.
They get about 15 feet tall and the winter snows cause them to bend inward on both sides.
I was pretty fortunate. Three days of cutting and I only "rocked out" once.
It's a genuine Pain - you spend 30 to 45 minuets sharpening and one rock undoes it all in a second.
Hope you are having a nice spring up there.