I ran P60's , P61's and P62's for years , they were the saw to have back in the days , The P60's were the hot rods of the group , I never pulled one apart to see why but turned more rpms the the others , we did have abit of crank trouble with the 60 model that we never had in the 61 or 62 . As far as power goes in bigger hardwood they cut not quite as strong as my 2100's did but pretty close and alot stronger than the homeatnight 922's