Aha...nothing like a poke in the eye with a sharp stick to provoke a response and when you filter out the understandably indignant adjectives at:
MH370: I Speak Out | The Crap In Between SeaDemon's Ears
what is left reveals a fairly close correlation with the path proposed by "Read my ACARS" at:
MAS370
Which is an excellent piece of deduction.
Am guessing that the new radar data likely came from the Andaman Islands base which is why the donor wishes to remain anonymous.