Wow 25-30 ml a day?! Thats quite a lot! Anyways, I'm okay to switching to this one but as I said I'm now almost cetain that I'm allergic to PG. Theres no other explanation of this problem happening.... And since I can't return it I must seek for an alternative.... Now my friend told me that he is not really vaping a lot with the 90/10 liquid. As what we discussed he is vaping something like 4x 4.5ml a week (on average). I'm sure that i will vape twice as much and I'm wondering if its worth the risk anyway because If i cant vape anything with more PG from that it is pointless to save the coils... Oh and btw thanks a lot for the quick responses , much appreciated man!