CBW and CBG were my first pipe tobaccos waaay back in the late 90s. I don't know if anyone else has experienced this, but CBW (and CBG) seem to mellow out nicely over time. I used to just keep it in the pouch and carry it - and it would sting towards the end. I've since started jarring it, and allowing it to air a minute or so before I pack and puff. Scores better. Also, it's amazing in a churchwarden. Cools down immensely in the long stem.