I have had my SG11 for about two years...It has always used too much line for the job I use it for but recently it started using all of a spool for one use...I changed the spool twice thinking it may just be the spool but no change..Now the spool unwinds upon initial activation and rewinds outside of the spool on the weed eater..It is of no use the way it is and I may have to go to another name brand!