I have been pulling my hair out for months with the same issues as you....here is what I have learned. 1. I now add 10% paraffin to my soy 646 as it eliminates the frosting 100%, makes the tops smooth as a babies bottom and lets me add a tiny bit more fo for a stronger throw. 2. The hotter I pour the better the candle comes out, I really have tried to pour cooler as its always recommended to do so, but with me they come out horrible, so I do not wait for them to cool right down. 3. I now place all my candles in the oven after I have poured them, once all in the oven I turn it on to 50c, leave for 2 hrs then turn off. I let them sit in the oven all day, even over night. The reason why is it seems to eliminate wetspots due to me adding paraffin...but geeze they come out perfect. I also want to add, im in australia and this is what works for me and my climate. Good luck