Stihl 026
My friend has an 026. It is a good saw, but it did have the fixed high speed jet that could not be adjusted. This was a problem when we decided to mod the muffler which effectively leaned out the saw to the point that it needed more fuel. We could have left the muffler alone, but once you realize the improvement this makes, you've got to do it. Had to buy a new, adjustable jet carb for it rather than mess around with changing the jets until you get it right (until the weather changes again). Anyway, the muffler mod helped it quite a bit, and it is a good runner now. Having run both, I prefer my 346XP for the air filtration system and the better vibration dampening system. (Yes, I know that was not one of your choices.) Good luck!