Are we talking Soy or Paraffin??? Since I am in General candle making I will assume(?) Paraffin: I have used the wide mouth Kerr canning jars since I started,,,people love them here,,,for my 16oz I use 4786 and I wick (depending if the FO is heavy) I use 60z,,,If FO light 51z. I like my burn 1/2 to 1 inch also. I have also tried HTP 83 successfully with this jar. When I am to my fifth burn my melt pool is doing well. I dont mind if it "simmers" as long as it is throwing and it has a good MP and there is no soot building up. If Soy,,, GB464 I use depending on the FO and heaviness in the same Jar ,,,Heavy a HTP 1312, light (maybe a HTP1212) or the 700 primeier series sizes 780 to 798. Im still playing with Soy,,, So I do not sell these yet,,,be a while,,, I agree with Crafty1_AJ you can only strive to perfection and get as close as you can,,,I am happy with my candles thus far with the 4786. I also have a wee bit of Peaks One Pour Performance Blend I love too,,,I loved that wax. Okay rambling now,,,Gotta make some candles,,,Have a great day!!