CO is not the best replacement for Palm. Your bars will be firm, but won't last long. CO is high in lauric acid, whereas Palm is high in palmitic acid. I recommend using either cocoa butter, shea butter, or soy wax to offset the no-palm. However, ironically., these are all high in stearic which would make stearic spots more likely.
Maybe they are not stearic spots since have very little stearic in your recipe?
Recipe tweak recommendations:
25% CO
20% Shea
30% OO
20% Rice bran
5% Castor
Maybe they are not stearic spots since have very little stearic in your recipe?
Recipe tweak recommendations:
25% CO
20% Shea
30% OO
20% Rice bran
5% Castor