I am a new candle maker. I have all of the normal problems under control ( even wicking ) except for one.....Hot Sent Throw. I am using a 50/50 blend of J223 and IGI 4786 wax. I get a clean burning 1/4 to 1/2 inch melt pool. I have tried a total of 37 FO's from three different suppliers. Cold sent throw of a number of these samples was good to excellent. Hot sent throws from all the samples ranged from fair to almost non existant. I had a second opinion that agreed with mine. I test in a rather large room; however, before I attemt to sell any I want the sent to fill a large room. I did also try some of them in a very small room with the same results. I add the FO around 165 to 170 degrees, stir for at least 2-3 minutes and pour at 155 to 160 degrees within 15 minutes of adding FO. One thing that concerns me is the accuracy of my thermometers. I have 6 of them... two glass candy type, three bi-metal dial type and one bi-metal digital. Depending upon the depth of the wax being measured, there is as much as a 15 degree difference between the six of them. I am not sure what I am doing wrong. Any assistance would be appreciated.