I don't consider myself to have quit anything. If I still smoke a cigarette now and then, it's no big deal, because I'm still just as addicted as I was when I got my 510. Sometimes I just want something else, even if it tastes like soggy dog crap and makes me smell like filthy athletic supporters.
I feel tons better than when I smoked all day, plus I don't have to go outside when it's 105 with 90% humidity just so I can come back smelling like hot sun and ashtrays. But then, I didn't switch to vaping because I wanted to quit smoking. I started vaping because I like it more than smoking. If I smoke now and then, it's not a fall off the wagon, because it's not like I quit smoking anyway. I just switched brands, and sometimes when you switch brands, every now and then you want the old brand.
If you're only smoking one in the morning, then I think you're doing great. You've got to be feeling better, you stink less, your mouth doesn't taste like cancerous growth, and you're saving a ton of money. But all that means squat to me. I just like to vape. If I want a Winston now and then, screw it, I'll have a Winston.