I am using an 18 oz. Victorian Keepsake Jar (from lone star) with J223 wax. On my latest test candle, I am using a 60-44-18z wick. The melt pool is almost across the jar but the wax doesn't melt on the edge of the jar, even after 3 4-hour burns. Should I try using two wicks of a smaller size, like two 44-24-18z's?