AOD
Addicted to ArboristSite
...or in other words high RPM/low torque vs. low RPM/high torque. You can brag all you want about your 260 or 346 screaming away at 14 G's, but what good are those RPM,s if you drop to 7500 when cutting a big log, and have to use .325 chain that can't pull big chips? A 6500 RPM saw like a Super XL barely loses any RPM's in the cut, and powers through with the bar buried even when you lean on it, where your 260 and possibly even a 361 might bog down. And the other extreme is running bars over 36" in hardwoods, chain speed doesn't mean much with huge bars. The opposite of a saw like a 346 would be a gear drive with such a slow chain speed that you can file it while its going around.
*stirs pot*
*runs and hides*
*stirs pot*
*runs and hides*