had to put 4 echo trimmers in the shop last friday. due to increasing unreliability of the echos, i decided to buy a stihl fs85 while i was there. at quittin time monday the guy who had been using it put it in the rack & said "great trimmer, but you can find someone else to run it". when i asked why he showed me several burns on his right arm just below the elbow. looked like you had stuck a cigarette to him. i used it a while today & now i've got burns. these burns are from touching the plastic covering the cylinder/muffler area on the trimmer. any of you experience this with your stihls? is this the way they are designed? the echos get pretty warm, but i've never had one draw a blister!!!