Welcome and glad you joined.Currently .6, I just purchased the 1.2 coil which I just found out that is better for higher nic. I just put a new .6 coil in before I found that out. I don't want to waste a new coil so gonna use it up first.
Good plan to eventually use the 1.2 coil, I also think you will save some money and the taste of the e-liquid may improve among many other vape characteristics.
May like to read:
Vaping with nicotine vs. nicotine free. Does this alter our vaping habits?
https://www.e-cigarette-forum.com/f...re-and-lower-resistance.706656/#post-16692106