I have 2 Stihl MS180C chainsaws, one Dewalt 60v battery chainsaw, and one bigger Stihl chainsaw that doesn't start easy (I haven't run since an accident I had a few years ago; I think it's a MS290 Farm Boss). Anyways, my Stihl MS180C saws work fine most of the time, and I try to sharpen the chain after every tank of gas (or 1.5-2 tanks depending on the task at hand). It seems like the chains get stiff over time, even though I use Bar oil every time, sharpen regularly, and sometimes soak my chains in used motor oil. The 180C's come with a 16'' bar and chain, which seems to balance well, and doesn't take long to sharpen with Stihl's all in one sharpening tool. Do thicker chains work any better? Should I soak my chains in something else while not in use for better lubrication? I'd like a heavier saw with a 20'' bar or something for cutting up bigger limbs into firewood length, but not sure if I can justify the cost of another chainsaw. Maybe I am being too cheap? Or maybe I should pay for professional repairs to the MS290? I live in Northwest Iowa, and there is ample wood here as a bunch of dead ash trees have been cut down in smaller towns like mine, and I like people to make use of it rather than just hauling it away and burning it in the country somewhere. It seems to me like gas powered saws are far more powerful than any battery powered I've seen. However, the battery powered saws have their time and place too.