your 670/6700/8000's were a different breed of cat than mine. i haven't run the 8000 yet, waiting for an air filter, but mine have wide power curves with ample torque. they don't spin as fast but once the find the rpm where max torque lives they'll stick there tenaciously. these are characteristics described by quite a few who use theses saws. makes me wonder if there was something wrong with yours. yes, the little 59.8cc echos are different, sort of a toyota to an f250. i like the look of the clutch/oil pump drive. but 60cc saws just don't do it for me, not there's anything wrong with it. i'm glad that echo is still selling the 680 and the 8000. there's still a small market for a high quality workhorse. for most weekend woodcutters the 60cc echos may be a better choice. lot of the hombres around here use poulans and 029s... not me.