Like many, I find the the CS wick guide is only a starting point. Generally, I would wick up from their recommendation. I have wicked up with HTP wicks successfully, however, I have found that I prefer Zinc wicks. I do get a mushroom, but no smoking, no soot, so I can live with that. You're really going to have to find out what works for you by testing. Different FO's may require a different wick. Don't worry though, you'll get the hang of it!