I have a KM 90, Echo SRM 225 x 2, and a husky 525 LS.
Husky 525 is new this year, so is the echo SRM 225 after my SRM 230 grew a pair of legs
All the pro level trimmers a pretty good. 525 has sweet AV and revs up real nice and has a fully adjustable carb, good power. The echo's go forever...