How's that 070 worked out for you? Saw in an old post after the first four months you were pretty happy with it, aside from the expected issues like the clutch, which was a problem Stihl OEM or clone. I like that it has the option of upgrading it to an 090, though that apparently is kinda costly between the need for the $100 six shoe clutch, the $160 P&C kit, and a few other things. Still, if one was to toast the 070 cylinder that's what I'd probably do. Did you upgrade the clutch? I gather the governor design that limited it at 8000 rpm made a lot of people hate the stock form of the saw. Did you do anything about that? But people hate the 880's for the same reason and curse the stock ones, because the modern speed demon lover hates any torque-heavy, low rpm, rev limited saw. It's exactly what makes them good milling saws though, they're slow and steady, never overheat, and can pull through anything. Doesn't hurt to bump the speed some with an 8 pin sprocket, though. Horses for courses. Never have done a thing to alter my 880, and has been trouble-free to this day.