I just got done building a Stihl 028 Super for c5rulz. He bought the saw new 20+ years ago and we freshened it up with new A/V mounts, crank seals, impulse line, fuel line, fuel filter, carb rebuild, starter rope, fuel & oil caps, piston & rings and topped it off with a woods port. For those that don't know what that means, that means I ported the cylinder.
We did several tests videos with it before and after. Without going into to much detail about the different tests, this video shows how c5rulz would be use to cutting with a brand new out of the box Stihl RMC .325 chain: http://www.youtube.com/watch?v=aVrk4Rnzp6I