Question: can a tfv12 coil fit in a tfv8?
Answer: The TFV12 Prince and Resa Prince both use the same coils. There is a RBA for the Big Baby Beast but you will need the glass section for it. The RBA for the TFV8 Cloud Beast has its own RBA as well as the TFV12 and TFV12 Prince have their own RBA sections.