Particularly new to vaping, but with a few knowledge. Currently own the SMOK Alien Mod with the Big Baby. Already used the pre-installed and extra T6 coil. Currently using RBA. I would like to know which coils would be suitable in case I need to change it? I know Clapton/Kanthal, but I would appreciate exact specifications so I know which ones to purchase. I wouldn't be the one installing it. I'll just purchase it online and have it built in the local shop. Also, what are the recommended settings and stuff? Also, how long before I need to change the coils? Thanks.