I just changed out the pinion on my Honey Bee King 4, this is the second time I've changed it due to wear. I'm surprised that the brass pinion is wearing instead of the main gear. I see that my Blade 450 uses the same size pinion gear. Has anyone else had pinion wear and whether the repalcement for the Blade 450 might be of a better quality, harder brass, and last longer. The pinion is a 10T 5M.