Vegetable glycerin (VG) is much more viscous than PG and, thus, it has a more durable time soaking into your wicks. This can be a non-difficulty for some sub-ohm tanks who've big wicking holes but could be a dilemma for tanks which might be possibly a little more mature or not meant for sub-ohm vaping.The origin in the phrase "Groos" in ELO's hit … Read More