I ran my new Dolmar 5100 today for the first time along with my MS 260 Stihl & here's my first impressions of the Dolmar vs Stihl. I put new Stihl full chisel chains on both saws so as to have as fair a comparison as possible. The Dolmar has a 18" bar while the 260 wears a 16". I swapped back and forth with both saws try'n to best judge the strengths and weaknesses of both saws. Both are very good saws. The two saws in maple and red cedar today, not really as tough a test as I'd like, but good enough for first time out for the Dolmar. For cut'n limbs of under 8" they are both good, but I'd take the 260 as it's .6lbs lighter in the motor + the shorter bar adds to this. Even if the 260 had the 18" bar I don't doubt I'd feel the same. In larger cuts however the added power of the Dolmar begins to show it's self. For wood of over 8" I'll use the Dolmar. And in the 20" cedar (largest thing I cut today) the Dolmar had a noticeable edge. If I were someone buying one saw to do everything I had to do, and based on just todays relatively soft woods cut, I'd buy the Dolmar of these two saws. (A 361 Stihl, 357XP Husky or 656 Solo might all be better yet, though of these 3 I've only run the 361.) I look forward to try'n the Dolmar further when I've a chance to cut some oak & white ash, that will be a even better test. PS On another note, I also ran the Dolmar with the Clinton chain that came on it to me. I"m sorry to say I think Clinton chain sucks it up vs Stihl chain. While I hand filed this chain vs the fact I was running new Stihl chain, I do a pretty good job sharpening. The Clinton chain was just not as good, dull in less than a tank and a half of gas, while the Stihl chain felt much better after two tanks than the Clinton did in 1 1/2 tanks. Softer metal perhaps?