I use coconut apricot wax & they Work great! Amazing HT! It does mushroom a little but it’s nothing that can’t be fixed by cutting it off. Works great for me!

I love the CD4 for my straight sided 4 oz jars with 464. This is the only size/series of wick I've found that gives nice scent throw AND doesn't create a super hot jar from the 1/2 to rest of the life of the candle. I love that they come in 3" for less waste & less trimming. These are also virtually self trimming in the jar I use them for as well.

I love the CD 4 3" wicks, they have a good burn pull and they burn clean. I made large 4 inch 3 wick jar candles for my family for Christmas and they loved them. They burn clean and have a high fragrance throw and nice burn pull. I highly recommend the CD 4 wicks for a large candle.

I used CD4 for 2oz tin. I got full melt and mo tunneling but I noticed that the flame is kind of small. I wish CS sell wick sample kits for different types of candles like they used to (not sure why they stopped doing this. Make less money or something??). Now I need to wait till wicks are available. It’s just annoying to buy bulk that I don’t end up using.

I use 4 oz round tins with a diameter of 2.7 aprox. and decided to try the CD4 and CD6 wicks. Surprisingly they both worked well in my test. CD4 was just slightly better because the flame slightly smaller, but in the 3 hour test they both melted up to the borders of the tin, almost at the same time, no tunneling. Note that CD6 is almost equal to CD4, so if you need a stronger wick than CD4 because of tunneling, you should skip CD6 and go for a higher one. I use 464 wax, but am going to be changing to Coconut wax soon. Hope to get the same results with it too. Lets see.

While this wick does not flicker and has a subtle flame and remains lit, at 1 hour mark, it did not melt the entire diameter of my 3x2" metal container. I will try the next size up. Just wish they had a CD 5 in the 3" wick.

After doing multiple burn tests, I realize that this wick performs much better than I previously thought. During the first round of tests, I could barely get a flame and I wouldn't achieve a full melt pool until 3 hours into the burn. However, I was able to get a full melt pool at around one hour into the burn and I had a much healthier flame during my second and third round of burn tests. I think part of the problem I had before was that I trimmed the wick too short towards in the beginning of the very first set of burn tests because the wick just never recovered after that.

After multiple burns, I find this wick performs best when you leave the wick alone (blasphemy!), especially in the straight sided jars. I tend to avoid trimming it UNLESS there is a mushroom at the top. Without the mushroom, the wick usually stays at around 1/4 inch in the straight sided jars, which is exactly what you want.

I usually love the CD series, I use them for all of my larger jars, but when I was testing these using GB 464 in the 4oz straight sided threaded jar I was very disappointed. I can't even reach a full melt pool until three hours into the burn. Luckily, I found a better wick through burn tests before I started selling any jars, but I won't be using this size CD wick. Maybe I'll have better luck using these with other jars.

I just tested these along with CD6 and was disappointed with both. They both had qualities that the other one lacked. For example I loved that the CD 4 had virtually no soot or smoking, whereas the CD 6 made my candle smell so awful because of the smoke and soot. Also I loved how slow the CD 4 wick burned however the burn pool never reached all the way to the sides, nor did it get very deep, but the fragrance was far better than the one with the CD 6 wick. The CD 6 wick's burn pool was perfect and neither of these wicks mushroomed. BTW I was testing in a 2.7" tall with 2.16" diameter straight sided jar from this site. Overall they both posses certain great qualities but the qualities they each lack compromise the quality of my candles so both are unusable for me.