How much difference between a 550 and a 346?I dunno. I think I would rather have an MM'd 550 over a 241. Yes, the 241 is handy, but then again, I work in forestry and firewood. In that respect, the 241 is mainly a limbing machine. Rhododendron, ivy(some as thick as your leg here). But a 550 can do all that and more, and not tax your back much, especially since you get more reach with more bar.