Recently bought a house on a 1.1 acre steep, wooded lot. My 12 year old Honda GX22 had continuing carb problems, so I pulled the trigger on a Stihl FS90R & BR600 Magnum. First day out with them was Sunday. 3 tanks of fuel through the FS90. Great machine, but the cutting head(Stihl Auto Cut) gave me fits! Had to stop 4 times to take it apart and rewind the line to get it to feed. I far prefer the cheap Shakespeare Push n Load head I had on my old Honda! Suggestions?? BTW...The BR600 Mag is stunning!!