IMHO, I would stick with the Kokum and Cocoa. Personally, higher on the Kokum cuz IMHO, it's better for your skin. Cocoa can clog pores. That said, I would still use the Cocoa Butter, because the generally public "knows" Cocoa butter. Doesn't mean it is better, but will make a decent product with an ingredient people know. Kokum is great for aging skin... must be why i like it! I wouldn't up your beeswax cuz like you said, it makes it tackier.. put more of the good stuff in it. If it's still not quite as hard as you like, then add a tiny bit of Carnuba wax.