What is a good saw for just general farm use? No cutting wood or anything hard just an occasional downed tree and trimming. And please don't recommend Poulan pro. I have two 18" just alike and neither are worth throwing away. I have had them checked out and can't find anything wrong. They idle fine, but when giving throttle, they bog down and die. Have new carbs and coils on them and new plugs and fuel line and filters. No fix. Second is a stihl ms250. Runs when it wants to and not when I really need it. Has had very little use. Last time it pope and died, and now won't hit at all. Getting gas and good spark but won't run. Always been hard to start. What is a good reliable one to buy?