Made a natural hemp wick this AM using 20lb thread (2.0mm), 30ga Kanthal A1 wire wrapped to 1.6ohm. I boiled the hemp to get rid of any impurities. I've been using the same set up with 2.5 & 3.0mm silica. The hemp has excellent wicking qualities & is easy to work with, but it does not produce the clean taste that I get with silica. It adds its own distinct flavor, which is not unpleasant. I've got some bamboo material & organic cotton in the mail & will be trying them next.