When im vaping Max Vg juices im breathing hardly and coughing. Ussualy i smoke 70/30 but im getting into cloud chasing and making my own vg juices ( on the bottle it says VG and water ) i ussualy use 7% Flavouring of the mix so i dont put in too much but this problem is presisting and i cannot cloud chase =( Maybie im not getting enought air ? i use a Helios with the airholes full opened and 0.5 ohm resistance. So if anyone is experiencing the same problem please tell me so i can find out what wrong =)