Well done! I am glad it's working. As has been said, the 1.2Ω coils are not for cloud. You have two others that might work for you; the .5 Kanthal and the .5 Clapton. Those, however, will require a lot more power. No prob, your machine will do it, but remember it'll be like switching from drinking through a straw to a fire hose. And yes, definitely cut your nic down before going subohm. You'll be getting a lot more vapor per puff, and thus a lot more nicotine.
EDIT: You can raise the watts some on the 1.2 coils. I personally wouldn't go over abut 17-20 on them. That will give you a bit more cloud.