i don't know the name of it, but the redmax trimmer set up, where you can use several attatchments, like stick edger, hedge trimmer, trimmer head...etc. any feed back on this?i need to buy another trimmer, but also need the extended reach hedge trimmer. thought this set up might be what i need. does the connection hold tight, or broken prematurely? i need the head to pivot for taller hedges. anyone have this machine?