michael pascoe <michael_pascoe@iprimus.com.au> wrote in message 3a22f1c5@news.iprimus.com.au">news:3a22f1c5@news.iprimus.com.au... > What benifit does grinding give BTW? Umm, not quite sure, but it brings the profile of both rails to be the same, so reducing wheel ware (or something like that....) Sam