Is there any difference? Casablanca has been my ADV for a couple years and I saw BW4 gave it a try and loved it! Mixed 70% BW4 to 30% Casa and fell in love. Now it isn't on the site anymore. Is the RY4 the same on their new site? Being a BWB customer has been somewhat frustrating over the years due to stock issues or being closed and now that I finally find a RY4 (BW4) that I love, it is gone.