I purchased a shindaiwa T231X a few months back and it is a p.o.s. My 5 year old stihl fs85 will run circles around it all day long. It has no balls at all, a weedeater from homedepot would work just as well. Also the head now moves around, dealer says it might be a loose bolt, now i'm burning up my arm which never happened before. So my question is what should i do about this....i'm going to go back to the dealer and see what they can do b/c this shouldn't be happing to a trimmer 2 months old. The newest thing it does now is shuts off when you let it idle. i just changed out the plug and air filter and no luck so i'm running outta patience. Reason i went with shindaiwa is because they have treated me well in the past, otherwise i would have went with another stihl. Sorry for the long post but i needed to vent i'm just sick of seeing money go to waste!