I just finished testing a wick for a 3 x 3 1/2" pillar using feather palm wax. I am getting a perfect burn. And no blowouts. I am going to be selling these candles at an outdoor swapmeet in Arizona. First, does adding steric acid help any. Also, because they will be outside in sunlight, even though they'll be inside a tent, should I add UV to the wax.