I'm not so sure the SMOK tanks are the right juice attachment for you. SMOK tanks are known primarily for their vapor production, using power hungry coils and consuming large quantities of juice in the process.
Are you a direct-to-lung (DTL) or mouth-to-lung (MTL) vaper? How long have you been vaping? If you are relatively new, you might do better using a MTL tank like the Innokin Zenith or Aspire Nautilus.
Just my