I have a Noden helmet here that I am starting cleanup and prep work on. I have trimmed off the flashing (overground in one spot where the drum sander slipped), and am now going around the raised trim of the helmet and trying to clean it up ever so slightly without going crazy with it. I have been doing this by using a small jewler's file, and just running it along the edges, until they are a bit more uniform in depth and definition. It is VERY easy to overdo this and the create a significant depth where there shouldn't be. Still, I am not sure this is the most effective way in which to handle this. I'd be interested in hearing if others are doing this same cleanup and if so, how is it being done?