Grandfather was on a newsreel with his buddy as the first people in the state of California to have a chainsaw

Worked as a faller 90% of his life in Wyoming. Dad worked in the timber industry as a faller for 30yrs. I have three saws and multiple chains and I can't sharpen any of them I have tried and once I do great and the next I cut in circles. I just take them to Madsens and have them sharpened and life is good. My problem is I don't use them enough. Just for firewood and house projects

So I only have to sharpen once every other year.