Every time you change a scent or vessel, you need to have the ideal wick for that combination! The wrong wick size is the biggest problem in candles. Having the right size wick will make the candles safer, burn cleaner and longer. There is no short cut for this part. I know it’s not fun to wick test and often seems like you’ll never get it perfect. Perfect isn’t the goal! It’s about the hot throw, (how it smells when lit), the amount of heat the vessel takes when the candle has been burning more than 2 hours, and how quickly and evenly it burns. How do you feel about this part? On a scale of 1-10 1 being, “I don’t even try!” 10 being “my wicks are ideal for every candle size/scent”