I've been reading up on different things to wick the Vivi with.......braided cotton candle wicking, Aunt Lydia's #10 bamboo crochet thread, peaches and cream #4, etc. Does every type of cotton based wicking you use have to be boiled before use? Is there a type or brand that doesn't have to be? Thank you for any help you can give me, I'm old to vaping but new to the Vivi Nova and rebuilding.