most people order nic in PG but some people are sensitive to it so they get VG. when I order nic its 100mg in PG then I add the same amount of PG to make it 50mg i.e. 250ml 100mg nic plus 250ml of PG. the only difference on the amount you add will be how much you
buy. the more you
buy the better the price. you will also need to
buy extra PG and VG along with some flavors to make recipes. You could find some recipes first then order the flavors you need. You will also need to download the EJuiceMeUp calculator and play around with it to make sure you know what you are doing before you start. I vape 60/40 PG/VG in 18mg nic. If you understand what that means, you should be OK with mixing. If you don't, you need to do somemore reading and ask more questions before you get started. Good luck