Ive used a echo 21cc trimmer for a few years, also had a POS troy bilt and the same thing, a cub cadet clone of the troy bilt from lowes. The troy bilt thing is 31cc and eats gas, the 31cc Cub is clankly and just a POS imho. BUT it easily has more power than my 21cc echo trimmer. Will a high end, redmax, stihl or echo 31cc OUT power the pos 30cc i have now? What im asking is that do i NEED to get a 30+cc echo or commercial equivalent to match the power level of the cheap lowes off the shelf models. Will a 24-26cc trimmer do for the power im looking for? Im also going to get a real edger, strait shaft bent forward not curved sideways with at least 26cc power, most likely an echo too.