I think I can safely say that a line ATC doesn't have the first damn clue or care about SAM, SLAM or whatever acronym you use next.
Things change, WX changes, RWY's break etc etc.
Either you hold, divert, or declare an emergency and take priority. Your fuel carriage is a matter for you and your company. Interest level - YAWN.
Oh and I look forward to the mountain of paperwork from the Canberra NOC, now that is FUNNY.
