I have LX 16 for both my 4 oz and 8 oz jelly jars. I used the wick guide on CS and I haven't had any problem with the melt pool, etc. I have let them cure for about 48 hours. I'll try waiting longer to see if that helps with the HT. Other than that the candles look good, only a few candles with wet spots, but I am going to try preheating the jars and see. I upped the FO from 6% to 9% and haven't tested any with the higher 9% yet, but we'll see. Thanks.