Thanks all for the info. I need to experiment to find out what works best for me. Last week I ordered a 65/35, and it seemed a little thicker than what I had used previously. It gave me lots of vapor and the flavor was good, having ordered 1 extra shot, and it is one that I will order again. I do not know the blends I have used up this point, but am going to start documenting my findings. Last night I ordered two 15ml in 80/20, so we'll see how that goes. Of course, I can only hope that the flavor is good, as it can get expensive finding what works. My goal is to average $1.50-$1.75/day in total vaping cost, including flavors and hardware.