I don't use 464 wax so I can't help you with that but for candle making I stick with the fragrance oils, I think essentials oils are more for bath and body products. If you use only the fragrance oils and still aren't getting good cold and hot throws maybe try using a different wax, I use Soy125 from KY and I add oil at around 150 (1 ounce per lb) and stir real good, then just before I pour at around 100 degrees I stir really good again. Cure time for me is at least 1 week or longer. I get a good hot and cold throw. Haven't tried Palm wax yet so can't help you on that either.