I am a certified arborist from NH and I have been taking on more and more tree work. I am looking to buy a new chainsaw and need some advice in picking one out. I know it is going to be a costly purchase and want to get the right saw the first time. I will need a saw that can fell, buck and limb oaks, maples and pines. I will be felling trees that are no larger then 20”. The saw will see use about three times a week for extended periods of time. I know the new saw is going to be a Stihl, I am just having a hard time picking out the right model to suit my needs. I went to my local dealer and he suggested MS 270 or 290. I didn’t know if these were solid enough for what I will be doing. I was leaning more towards the MS 260 pro. Any suggestions, advice or comments are welcome. Thanks for reading.