You know I thought when I finished college I was done studying and doing a lot of research and then I started vaping. I'm 5 weeks in and it seems like I have more questions than answers. But I digress. I think I've got enough equipment for a while, I better cuz my credit card is taking a beating, so now I'm learning about what flavors of juice I like and I hadn't really considered ratio. At this point I've just taken whatever ratio was offered but then I started looking at Mt Baker and it gives the option of ratio. I have no idea what ratio I like so market some juice in the ratio you like.