I'm running 24/32 Claptons. 3mm ID 6 wrap. 0.28ohms. 55-60W
I find this to be the perfect heat to airflow ratio with 66% airflow open.
But as it is warm it's quite thirsty but faaar below my single clapton tfv4 builds.
Just so we on the same page, your saying that your dual coil Griffin build is lighter than a single TFV4?
If that's what you mean then this is a winner of a tank.
I am using the dual coil RBA ATM but man does it guzzle juice and can turn my lounge from sunny to overcast in no time!