I tried easy off on a couple of Lee-Enfields, and the first one ended up with a horrible pinkish colour that I couldn't get rid of. The second one, a nice, but greasy Queensland Maple stock, was ruined in less than ten minutes. All the stain dissolved, and the wood got soft and punky. Just destroyed it. Circa 1850 works okay, but again, is very corrosive. I got called away while stripping a stock once, and returned to a ruined sink. Murphy's oil soap, in a strong solution with hot water and a green scrubbing pad, will work on anything but paint. It won't harm the wood, your hands, or your sink. It may take some actual work, but is far less harmful than soaking your stock in caustic chemicals. It also doesn't change the colour of the wood. I tried easy-off on one spare butt, and Murphy's on the other. The easy-off treated stock appears bleached, while the other had a pleasing brown colour after oiling.