Imo, you should test the wick till the end of the jar so you know how it does...then if you think it is still to big make another tester using the CD16. Wicks behave differently through subsequent burns and its hard to tell from the 1st burn just how well it will or wont do. Of course, if its a torch or the wick drowns out, then yes pull it and try another, but if it looks decent then test it till the end...hth