It looks like most of the questions here are primarily hardware related but I'm going to ask anyway. 
I started vaping about 3 months ago, actually my husband and I both got the eGo C Twist with the Vivi Nova 2.5mL tank. I love it and am sooo excited about everything!!! I went from a pack and a half a day to 6 cigs on the very first day and I have been smoking for... well, a very long time. The problem is my husband. It seems to make him cough every time. He started with a stronger nic content than I did so he tried mine and it didn't help. I don't really understand since he smokes a full flavor cig and cuts off half of the filter to make it stronger. He keeps trying so I know he wants it to work for him. He tries whatever I bring home but a couple of puffs is all he can handle. I really want this to work for him too! Aside from the fact that I don't want him to smoke himself to death, I really would like to have him share in my excitement. I want to be able to talk about it! My best friend is a non-smoker so she doesn't want to have these conversations. All she knows is that she is happy that she doesn't have to wait for me to go smoke anymore (lol). Plus, it is making it very difficult for me not to smoke a few here and there. Granted, 5 or 6 is a lot better than 30 but still... I just think it is so great and am so happy about it (I can hardly believe how much I enjoy it) and I want him to be able to join me in this if possible. Just so you know, this isn't something I talked him into. We had talked a little about it in the past and then I brought it up in December and it turned out he had already been looking at the different models (didn't want you to think I am just some pushy wife hee hee). If it helps, I have been getting 18mg/mL and the manufacturers I have mostly used are Highbrow, RAWR, and Pink Dot. I am very very ready to begin making my own and will be ordering supplies soon (beginning of April) so I thought if it is a juice problem he has maybe I can solve it. I want to make my own anyway (can't wait!) so if the fix is that easy that would be great. I realize that this isn't going to be for everyone but I am hoping since he wants it, we can find the answer for him.
I hope I didn't ramble too much and that I included the information needed for you formulate some sort of opinion. Thanks!
I started vaping about 3 months ago, actually my husband and I both got the eGo C Twist with the Vivi Nova 2.5mL tank. I love it and am sooo excited about everything!!! I went from a pack and a half a day to 6 cigs on the very first day and I have been smoking for... well, a very long time. The problem is my husband. It seems to make him cough every time. He started with a stronger nic content than I did so he tried mine and it didn't help. I don't really understand since he smokes a full flavor cig and cuts off half of the filter to make it stronger. He keeps trying so I know he wants it to work for him. He tries whatever I bring home but a couple of puffs is all he can handle. I really want this to work for him too! Aside from the fact that I don't want him to smoke himself to death, I really would like to have him share in my excitement. I want to be able to talk about it! My best friend is a non-smoker so she doesn't want to have these conversations. All she knows is that she is happy that she doesn't have to wait for me to go smoke anymore (lol). Plus, it is making it very difficult for me not to smoke a few here and there. Granted, 5 or 6 is a lot better than 30 but still... I just think it is so great and am so happy about it (I can hardly believe how much I enjoy it) and I want him to be able to join me in this if possible. Just so you know, this isn't something I talked him into. We had talked a little about it in the past and then I brought it up in December and it turned out he had already been looking at the different models (didn't want you to think I am just some pushy wife hee hee). If it helps, I have been getting 18mg/mL and the manufacturers I have mostly used are Highbrow, RAWR, and Pink Dot. I am very very ready to begin making my own and will be ordering supplies soon (beginning of April) so I thought if it is a juice problem he has maybe I can solve it. I want to make my own anyway (can't wait!) so if the fix is that easy that would be great. I realize that this isn't going to be for everyone but I am hoping since he wants it, we can find the answer for him.
I hope I didn't ramble too much and that I included the information needed for you formulate some sort of opinion. Thanks!