I have found that some of the flavors are a thicker juice and have trouble wicking so i mix afew drops of flava with several drops of a thinner menthol I have. what liquid should I use with the boge 2.0 cartos to get it to flow through the wicking matirial. is there a certain mix i should try???? might be a new question but I thought you folks over here might be able to handle it. although I am liking the menthol watermelon