I just removed the scales from some old razors of mine and none of them had a sleeve over the blade end pin, however, in the video that I watched he used one. What tends to be the standard use, using a sleeve or not using one? None of the kits on eBay that I saw had any sleeves, just pins and washers. Is there a specific vendor that I should use for the pinning kits? I don't mind spending a bit more for quality.