Hi again I have time now and after I gather all your information I think you will need to lower nic intentionally now. Your old device is e-lectron L using 2.4ohm C2 atomizer. Now you step up to use 1ohm. You probably need to lower nic strength from 12mg/ml to 6 or 9 mg/ml.
We are in the same route. I was in 9mg/ml at 2.2ohm for 1.5 years and step up to Ego One 1ohm. I have to lower nic to 4.5mg/ml to feel comfortable.
2.4ohm give less vapor than 1ohm because it use less wattage power (energy) to fire. You can see from joytech info as the example: output wattage is 20W-30W(0.5ohm head); 10W-15W(1.0ohm). The sub ohm 0.5 will need double power and this power transfer to heat coil and from heat transfer to vapor. Double power mean double vapor in single draw. That mean you get double nic amount as well.
You body now consume 24mg of nic per day because you use nic strenth 12mg/ml for 2 ml per day. When you lower nic strength to let say 6mg/ml your body will require 4ml to get what it uses to be.
This is roughly calculation don't take it seriously. Your body will tell you what it need and suitable for you.
I thought the device was partly responsible but also, I used my Electron L with 10 mg juice, that tank is 1.5 mls, slightly smaller than this one, and only vaped 3/4 of that in a day. So idk. It was happening with the Electron too. Yes it does seem more apparent now on the ego tho. You're right. Should have mentioned that.
Did order 6 as well as 3 mg today. Got priority shipping so hopefully it comes soon!