My current weed eater needs some major repairs and I've had it for years so it's time to find a new one. I was using the default head which is such a pain to restring. I am looking for an affordable gas trimmer that will serve the purpose of trimming my lawn and that I can switch out a new head through screws, not bolts. Any help would be appreciated I'm trying not to go over the $200 mark but the lower the better.