I think you are referring to PG/VG, those are the 2 components of the
juice. As far as I am aware the Tank system on the EGO-T performs better with a higher PG mix, it is thinner than VG. I was advised to order 2 bottles of
juice of the same flavor, in a small size, one 100% PG and one 100% VG and make a few mixes myself to find the best level for me, worked out well. Everyone has a different preference.
Can you give a little more background to your previous cig brand etc, this will help the geniuses on here to give you the best advice. They have been so helpful to me.
Good luck, and you can do it, might take a little trial and error but you'll get there.