That little 33cc echo has the airfilter in front, the handle gives more dexterity than if the airfilter was rear mount, like 338xpt's but nowhere as classy. Of course that's argueable to an echo owner.
That echo would be OK on branches no fatter than around 3" at the most, that's it, there's no zing for anything bigger. That's with a 10" bar too. Start cutting stuff bigger than that up a tree there's only one surefire answer to any problems, a 200T