I was wondering how these perform. I do landscaping part time and need a decent back pack to blow off a couple of thick lawns I cut, I need something a little more powerful the my hand held. (Which is a stihl BG-65) Is this a good blower,(the echo) or should I spend the extra $ for the something bigger. Also who has better blowers for the money Stihl or Echo. I went w/ the Stihl hand held cause it was cheaper and had more power. Is that the same w/ the backpacks. Thanks for any input.