Ok...employing the Deano-method of weathering, this an older Bachmann boxcar, weathered by grey primer (spray can), alchohol to clean the sides, wash with water/india ink, then final wash with water/india ink/rusty paint color. I was shooting for a lightly weathered look, moderate use, normal wear and tear. Secondly, when were roof walks removed from boxcars? I'm modeling more current era but wondering if the roof walks were removed from the older boxcars to comply with the regulation(?) change. Where can I improve - and be honest.