The SS316 (Stainless Steel) BF coils - not only are they compatible with temperature control mode, but JoyeTech has innovated to allow these coils to be used with other power settings such as VW as well as TCR mode.
For the best performance with the eGo AIO, JoyeTech recommends using these 0.6ë© BF coil heads.

Coil for Joyetech eVic Primo Kit Unimax BFL Kth-0.5ohm DL. Head 5/pack