Melt the beeswax and then add your other ingredient(s). I would start with 75% beeswax, let it cool and check the hardness If it's too stiff (quite likely will be) reheat and add more tallow. Myself I don't care much for Crisco as an ingredient in any lube. There are a lot of recipes for beeswax based lubes but I would tend to keep the mix simple and you'll find it works just as good.