I'm running the MS290 which is the old model from the MS291. The 291 looks just like the 271 only has 5 more cc and weighs less. Have you looked at the price difference between the 271 and the 291? If the difference isn't that much, I'd go with the 291. I'm told the 290 is the number 1 selling saw. I'm running 55cc on my 290 and I'd hate to go any less. I use mine on everything. I've limbed with it before, but I prefer to use my FIL 14" Stihl for anything less than 6". But, I felled and bucked a 24" diameter Ash with my 290 and it got the job done no problem. It's perfect for what I do. I'm almost halfway through my second season with it. 10 cords last year, 4.5 so far this year. I've had no problems with it so far. Take it with a grain of salt. This is the first saw I've ever owned.