I bought a 24" Cannon from Dennis 3 years ago and the guide rails show no perceptable wear, however my new Oregon pro 28" shows a fast increase in tolerance. It is my belief that Cannon bars are much harder.
Also, if Oregon bars are softer and Stihl chain is harder than Oregon chain, than wouldnt the Stihl chain wear the Oregon bar faster? Stihl bars made in Germany are at least as hard as the Cannon I am using.
In addition, if I were to use only 73LG in the Oregon bars, would the wear be less, since I use mostly 35RS? Inveresley, if one was to use only Oregon chain on the harder Cannon and Stihl, would the wear be mostly to the drive tangs?