I tested the Kawasaki 27A today. I must say that I liked it a lot better than the stihl trimmers I've been using. It was lighter, weight was better distributed, engine ran more quiet, and it had almost no vibration at full throttle. After finding out how much better the Kawasaki felt than the Stihl. I might just check out some other brands. Who has the best trimmer with the least amount of vibration? Thanks!