That is exactly why I traded off my 346xpne after a year, stock, even mm they just don't have the torque, wide open on smaller stuff, they are hard to beat. IMHO the MS261 just has so much of more useable power band like the 028, 028 super, after about 15 tanks the 261 just has the torque for bucking up 16,18,20" size hardwoods. I think more and more people on here are realizing that to get the performance out of the 346's you need to put a unlimited coil in them, muffler mod them or spend 250.00 to get them modded, their just not the magic light saber than some will go to the grave insisting they are. I own both a 028 and 028 super, your just not going to get the torque, bottom end grunt out of the 346 unless you mod it, two totally different power bands, 346 high end screamer, must keep it wound to the hilt to get the performance out of it vs the wide torquier band of the 028 super. The MS 261 is all the 028 super is and more, built like a tank just like the 028's, more power, same wide power band, much better air filter setup and smooth as silk, fuel sipper. For my firewood operation I would never go back to a 346, the whole crew will take the 261's over them any day.
I respect the 346 they are a well built saw, a good saw saw just not all they are hyped up to be, some just build them up to be mythical and more than several have expressed their disappointment. The little 350's aren't that far behung and according to many the 555 is the saw that the 346 is often described as. Out of the box don't expect the 346 to be mythical light saber, some claim it to be.
It's just dang hard to improve of te old 028 supers, yes they are heavier, yes they may cut a littler slower, but they have balls, torque, and the build quality is why they will last 30 years plus as mine has.