lilcountrymomma, do you prefer the zinc with 4627 over CD's? I am currently testing the CD 18's in the 16 oz pint mason jars and they are working wonderfully, even with the heavier oils, and even slightly better then the htp's. I noticed that not many are using cd's with the 4627 so i was wondering what your opinion is. I have been a 4786 user since the beginning but am hooked on 4627 fully now, and cd's were always my favorite wick, so I just started combining the two the other day and I am loving it so far, well so far, who knows as it burns down. (fingers crossed)