M&P base can be made by using HP process, and adding ethanol at gel stage.... plus an extra bit of glycerin, or my using your already made CP soap (hard cure is best). The process is similar to rebatching. You will melt down your grated soap, add ethanol slowly, stir stir stir. add glycerin. Eventually, you'll get an ethanol trace. Let it harden overnight. Remelt. Harden. Each time you remelt, it's getting rid of more water content. The color will be similar to a gelatin-- not totally colorless. But, it takes color well.