I use plain old par. and add my own additives and have done it for yrs now and have not ever had a problem my customers and stores are very happy with what my candles are like. You have to explore and test. I tried useing a one pour and was not happy with the burn time, my par. in my opion last longer than most, its harder and pulls away from the jars and I get very little wet spots. Just my opion DeeDee-ohio