I would like to add that I usually do both when it comes to making my own juice. I use 100% PG 100 mg Nic as I make both ends of the spectrum although I am currently at 30PG/70VG mixing @ 6mg with around 10% flavoring. That does make it harder for higher VG juice but I am happy with 30/70 while running sub-ohm. I also make 70PG/30VG @ 24 mg Unflavored that I run on a 1.5 Ohm coil @ 7.5 watts. I dilute the whole liter down to a 70PG/30VG @ 36 mg Nic as it is easier to make both strengths. That makes around 7-500 mls bottles. It would all depend on what you want to run. Just that I noticed you may end up doing both sides as well and that is what works for me. Hope this helps and welcome to the wonderful world of DIY!!!!!!