Well I've been working on my filing lately and am getting some great results. My chains looked like hammered dog crap a month or two ago. Here is a little chain pron. I clean my chains up and usually store them in their boxes after I use them like rain man. This one hasn't been used much but it needed sharpening. I used a flat oregon file guide.
It's a .325 20lpx Still can't run it cause of my back. I have another buddy that thinks he wants a 550. I sharpened it for him so he can run mine to decide if he likes it. I may convert all my friends to 550s after all