LMAO! That sounds like something I would try to get away with. haha!
For me, I don't think I could ever be in a collared relationship with someone who didn't insist on "Master." The word holds so much meaning and importance to me, that I would consider a master who didn't insist on it to be completely incompatible with me.
On a related note though, my master would be severely displeased if I referred to ANY other dominant party in any particularly deferential way, be it master, sir, ma'am, whatever. milady, milord. Doesn't matter. I am to address anyone but him as a complete equal because I am not THEIR sub/slave/pet. I am a complete equal with anyone but him and those who cannot respect that, do not spend time with us.