Ignore the charts. They were created when most of us were using much higher ohm coils. The way to find your best vape is to start with your battery at its very lowest and slowly dial it up. If you start getting a burnt taste (the beginning of a "dry hit") dial it back down.
Make sure you are priming the coils before you start
vaping on them. The wicking material in these coils needs to be thoroughly saturated before using them, and it takes a while when you first load up a new coil. I like to drip a few drops of
juice down into the coil where the mesh screen is then put the coil into the
tank and let it sit for ten minutes (with the tank full). Give it a few unpowered primer puffs during these ten minutes. This should make sure you get the wick fully saturated.
Coil Prep for the Aspire Nautilus