I have an old batch of juice that was 50/50 and I had little to no isuses with it. However my new batch I got 80/20pg/vg and it's giving me some breathing difficulties I think. I just got some glycerin from CVS to dilute it. I am terrible at anything math and chemistry related however. What I am looking for is a formula to dilute my 80/20 juices to get it at or close to 50/50. I would like to do this on a drop by drop basis if possible and then if that seems to help, I will go about asking how to convert whole bottles this way. Thanks!