I need a string trimmer / brushcutter. I would like to have a straight shaft, shoulder strap and two handle one like the one I used working for state park 15 years ago. I started looking and the choice now is daunting. If anyone has any input on choices or 2 or 4 cycle, engine size/output, string trimmer head design, safety guards, durability, cost etc. I would welcome it. (I hope this is the right place to post this.) Thanks in advance.