You guys are making me want to keep it, lol. Hotsaws101 has a video of a ported one pulling a 42” bar buried. I would think a 28” would be no problem in hardwood. I have noticed the ported one I have doesn’t seem to be affected near as much by elevation, going to higher elevation it can handle the thin air-too much fuel without adjustment. If this one don’t sell pretty soon I’ll probably get it ported, I really do like the torque and balance of them.