Somewhere on the Global Intraweb I saw a write up of a how to on drilling a sprocket cover for the xs400. I swear to God I have done every type of search on here, bing, google, yahoo and the neighbor down the street trying to find it again. (Mental note - bookmark things that look interesting) Has anyone else seen this and can steer me to where it is? This write up was interesting because the author talked about how to avoid drilling through the parts of the cover that strengthen it.