OlympicYJ
ArboristSite Guru
Personally I'd go with the 404. All the old fallers swear by it durability wise. Shoot you may like it so much you stick with it for falling. Supposed to last a long time in gritty conditions and something about that wider kerf helps with pinching or something, I forget exactly what the other benefits are. Set chokers on a park job with an AK faller. He said he used the carbide stuff down on a river delta where grit got blown into the bark. Worked good but you wore the chain out before the cutters were used up. I've stumped a few doug fir and spurce rounds. 372 32" 3/8 full skip pulled okay, just couldn't keep a nice strait cut. Was trying for an extra round of firewood out of it.