So far the only one Iv'e wicked well were htp 104 -8 ounce jelly jar, and htp 105 for 9.5 decoden jar. I just tried cd 20 for a 3 in. straight jar and couldn't smell anything until I blew it out. LOL It did have a full melt pool in 3 hours though, about 1/4 in. deep. I thought the htp and cd were pretty much the same but I'm going to try an htp 1212 for the 3 in. just for the heck of it. I do know that 3 in. is the max size for a single wick in soy. I am just making for me and my family so I use 1.5 ounces. Others use 1 ounce. I add FO at 175 and pour pretty cool. There is a sticky at the top of the page for scents that do well in soy, not all do. The greatest thing I have learned is to search using a plus sign + between two words. example; wicking+soy. This is what little I know for now. HTH