Last season we used mostly a string trimmer to edge along, well pretty much everything. But this season we bought a wheeled edger and a Echo stick edger and they both are leaving a not so good edge on everything. Its almost like either one tears the grass out rather than giving it a nice clean look. The wheeled edger we switched to an 8 point blade and the stick edger has the standard blade. IMO using the string trimmer looked a heck of a lot better but not perfectly straight some of the time. Any thoughts?