I have run about 50 tanks on my 070 runs better than when it first started. I still have the same decomp valve even though I have many Stihl spares. I am hooked on its torque, but my 076 can't keep up with it. The 076 is tired needs to be gone through. It some how got put away wet. If the 070 did not run so good the 076 would get a lot more attention. Thanks