Iput about 7000 shots thru rwo Excals this spring and summer, just waxed the servings. When you get a build up of wax on the rail [lots of shooting] you can take a credit card and scrape it off, followed by a wipe w/ a rag w/ WD-40. I tried some teflon rail lubes and didn't see where they are worth fooling w/. I have an old leather dog chewed work glove that I use to rub the wax in, friction heats the serving and it seems to last longer between waxings. Any right handers out there need one leather glove? lol.