I just ordered the Tritan starter kit for hubby who still smokes and an extra batt and tank for me who occasionally smokes. I have used to smoke a pack a day but after my kids, as much as I love to smoke cut down to occasionally when we go out or special occasions. I think this would be a perfect option since I quit I hate smelling it on my husband. Well I chose the halo tritan bc I read that most who start on the cig a likes end up upgrading so I figured that Id start there instead. The only problem is that hubby said at work he would rather not stand out while smoking the triton so I read up that you can modify the cone for a minitank which I think looks very nice. We can do the modifications on his as the kit comes with the cone but I thought I may like one for when I go out, which size should I order? I like the idea of the tanks so I don't really want the cartimizers. Thanks for any input. Sorry if I spelled things or pronounced them wrong still very new to this.