Finally started making candles in an 8 ounce jelly jar. So this is my first test burn. I have 4 jars, I used 3/4 J223 and 1/4 6228. I got some sample wicks from wick it and I used one of each 740, 745, 750, 755. They have burned for 2 hours so far. The 740 is about 1/2" from the sides and looks good, the 745 is almost to the sides of the jar. The 750 and 755 seems to have a much deeper burn and not as much to the sides. Does it sound like the 740 is the best choice? Also the 750 girgled for 5 seconds and then a hole in the center by the wick opened up, what is that from? Thanks. Karissa