Here is a nice little thread on some users familiar with drip tips and their thoughts on its function http://www.reddit.com/r/electronic_cigarette/comments/28jokp/what_effect_does_a_drip_tip_have_on_vaping/. Depending on the drip tip design some of the features/benefits are: purely cosmetic, changes in flavor, amount of vapor produced, temperature of vapor, and ease of re-filling. Seems like another nice product offering if they decide to produce them for retail.
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