ok so when i bought my evic 2 weeks ago the wattage was able to be at 4-4 watts....the attomizer burnt out today so i replace it,it was back to being able to vape at around 3-4 watts, so i try it at about 10 watts to get a nice cloud and try to turn it down to 4 watts and it will only go as low as 6 watts??? whats up with that?