J223 is notorious for wet spots! I did all of the "right things" in the hopes of minimizing them. I ended up having to hit the sides of my jars with a heat gun and that helped some. Interesting enough, I (inadvertently) discovered a way to get rid of them completely. My work space is a finished room in my attic. One night after pouring, I accidentally turned the heat off before going downstairs. The next night when I went back up the room was cold (49 degrees)!! I looked at the candles I had poured, expecting the worst, and instead discovered that none of them had wet spots. All of the wax had pulled away from the jar. I always heard that slow cooling was the way to minimize wet spots. Haven't read or heard anywhere that "freezing them" would get rid of them but it's been working for me! I'm not sure what I'm going to do come summer, but right now, I'm enjoying my wet spot free jars!