I don't have the Ello tank. But I've read the coils for it are compatible with the baby beast tanks. My favorite for the BB is the plain .4Ω Q2 coils. I didn't know there was a SS316 coil out there that would fit in my BB tanks. I prefer SS wire for flavor usually. I was wondering if anybody here has used the Eleaf HW1 coils. They are .2Ω, SS316. How do they perform? Can you compare them to the Q2 for flavor and coil life? Thanks.