I bought a smy90s mod off "Chris F"" off shpock last week, paid £40 for it, he showed it me vaping, 2 vape each me snd him , paid him and left, since then it hardly ever turns on and never goes past 42w. Perhaps I should be partly blamed for not fully checking. But he told me it was working perfect, only used couple of times. It was just a total rip off. So beware ""Chris F,. from Littleborough UK"". My S5.