On the web site in the faq they talk about vaping the doublers straight, for zero nicotine users, but they USED to also say that it would be kinda strong and you would need to cut it down a bit but, they don't say that anymore. So, maybe they have reduced the strength of the doublers over the past year or so at some point.
But, I got an order in the last month or so with 4 ej doublers and, didn't seem to have any problems.
To be honest the TV nic seemed to be causing me problems as well. I have a severe allergy to house dust so maybe it is just me but, was getting serious lower intestional distress and had to go looking for nic otherwise or I would just have to stop vaping TV juices.
If you think the doublers are too weak, try vaping them straight. I did and it was TOO STRONG. Even now, in a mix that is 11/12ths doubler, the question that comes into play is whether the flavor is too strong or not.
If you are mixing flavorless nic in that brings you to 24 mg... sheesh... minimally you are just gonna be 3/4ths doubler and you are gonna be down 25% of the flavor. If you are mixing in 48 mg flavorless nic that would put you at just 50% doubler and, yeah, that is gonna be like almost no flavor at all.
Uh, in the faq on the web site, they address the question on asking for stronger flavors and it is a flat NO... lol... you are asking for too much. Yeah, almost like looking the gift horse in the mouth.
If the TV nic is giving you problems and you want to vape at 24 MG, maybe what you should do is get your own PG/VG and your own nic and order the flavorings... Geoff and company offer them on the web site for DIYers.
Z