It does depend on your nic base mg strength and what your target mg will be
Baring in mind that most flavour concentrates are based with PG
Examples to achieve 70/30 PG/VG
PG Nic Base
72mg PG Nic Base down to 24mg target MG is going to be 33% PG giving you room for 37% flavour total - balance of 30% will be plain ol' VG
72mg PG Nic Base down to 18mg target MG is going to be 25% PG giving you room for 45% flavour total - balance of 30% will be plain ol' VG
54mg PG Nic Base down to 18mg target MG is going to be 33% PG giving you room for 37% flavour total - balance of 30% will be plain ol' VG
VG Nic Base
72mg VG Nic Base down to 24mg target MG is going to be 33% VG giving you room for 67% flavour total (inc plain PG) (best you can achieve is ~67/33 PG/VG)
72mg VG Nic Base down to 18mg target MG is going to be 25% VG giving you room for 70% flavour total (inc plain PG)
54mg VG Nic Base down to 18mg target MG is going to be 33% VG giving you room for 37% flavour total (inc plain PG) (best you can achieve is ~67/33 PG/VG)
If your target MG is lower than 18mg then it becomes a lot easier, especially if your Nic Base is 72mg as the base needs to be diluted a lot more so you can add more PG or VG to get your desired Target MG
Hope this helps
