My chinese relatives feel that I should be addressed as Sifu because it is my highest title and I am teaching.
1. Your Sifu made the decision, and of story.
2. Concentrate on training not titles
3. Your chinese relatives? Maybe they can talk to your Sifu on your behalf? My American relatives feel that I should be addressed as jacka$$ because it fits my personality, and I AM teaching.
4. Has it occurred to you to stick with one system and advance to a well deserved rank/title?
5. The students at the school, or whichever school you are training at this week, may misunderstand your new moniker and ask you a question that you are not qualified to answer.
Warmly,
Jamey