just got a nice,clean,new kangertech pro tank 2 (clear) today and i love it.. except for the fact that it spits at me every ten or so hits... ive tried blowing it clean a few times,which works,for about 5 mins then it starts spitting again. im using 2.2 ohm coil with a 650mah 3.7v battery from a starter kit. someone suggested more cotton in the coil but this is one of those quick change coils. im not sure what to do here...