just building my 201 at the moment.have examined the idler gear and noticed at various different points the material looks weakend(its whiter than the rest of the gear material).have examined the spare idlers i have aswell and they are the same.it is mostly along the base of the tooth or at the outer edge.could this be a sign of a problem with the material(it seems alot harder than the material used by ae) thats causing the problems
