Oh brother....
I like to keep my chainsaws really clean. Makes me feel at peace with the world...
But not feeling that much at peace today...
Was out there, clearing some giant Myoporums (I think) bushes, like 30' tall. With limbs up to 10" in diameter or so. Whenever I'd cut one of those...
I was just reminded of this issue a few days ago -painfully- when I had to hold a big round a weird way to halve it, had to go from the end, did not pay attention to that, persevered (bad idea) and promptly dulled my chain. It was really bogging down too. So I thought it might help somebody...