Hi sorry to bother you but I've just started having some problems with my kangertech subox mini with 7ml tank. I've just replaced my coil today and bought new juice. I have. 0.5mil coil with elements watermelon chill 80 vg 20 pg. I've done my usual routine with replacing a coil and all I'm getting is a harsh hit. Not burnt just really harsh. I've never had this problem before and just wondered if you would know anything about this. Thank you.