I always used the old SHindiawa T 270 weedeaters but hey no longer make them as well so I switched to the T 350 and then bought a 40cc Redmax. I found the big Shin and Redmax weedeaters were way faster than the T 270 for heavy cutting but way to heavy. I noticed the Sthil FS 250 bousts a big 40cc motor and is way lighter than the Shin or the Redmax but how well do they work in comparison? I bought a Kawasaki KBL34 and took it back because of lack of power is the FS 250 as powerful as the T350 or big redmax? I know thw Sthil is not as tough it is to light but other than that is it a real brute? THANKS!