Rusty- I tend to agree with Kaybee. I use Plain 415 and I have had a heck of a time wicking lately. I am trying to wick Elevation Jars (which are similar to Apothecary Jars), and I am having the same issue of them getting halfway and below and they start to drown. I was using another type of jar before and am in the process of changing to these jars. It didn't hit me until I saw Kaybee's last post. Because I've never had so many problems. It's hard to read the batch date on my box because it's printed over stuff already printed on the box...but it looks like it's 6-15-05. Thankfully I'm on my last box. Wish there was a solution, because it sure seems lately that there are a lot of inconsistencies from batch to batch of this product. Stacy