NTCI vs. PBI

Should I call what I do NTCI or Proficiency Based Instruction (PBI)? That’s all it is about…proficiency. Or should I call it something else? It’s non-targeted as anyone who has been on here since 2016 knows, but NTCI is just an awkward name to me and also invites the CI people to get oppositional. But PBI sounds like a sandwich. Ideas?