I made a batch of CP one time, didn't have any problems with making it, but didn't like the soap, was a bit drying. I used 2 oz of BS in a batch that had 26 oz oil. It had 18% CO, and since then I have learned that too much CO is not good for my skin, so I can't tell you whether the BS dried me out or the CO. I mixed it in a little at a time while SB before trace.