I was just at my local lawn shop today and he was trying to sell me on the kawasaki trimmers. I did pick one up and they were pretty light, comparable to my echos. He tried to explain that because all the larger kawasaki engines are so clean, they can make these like the older shidaiwas and run a little "more dirty" which means they have more power and torgue. Has anyone used these trimmers or other kawasaki 2-cycle stuff? Would you recommend them?