and ofcourse technically you can't even say "squawk seven thousand" anymore-it has to be "squawk seven zero zero zero"!! because whoever writes the MATS 1 clearly hasn't spoken to an aeroplane since DC3's ruled the skies. I see the point of saying squawks as individual numbers, but I don't think anyone in their right mind would say "squawk one thousand three huindred and twenty seven" -I think an exception can be made for 7000 though! Correct me if I'km wrong but in the US they just say "squawk VFR" (meaning 1200)...why don't we say "squawk conspicuity" or something slightly less tongue twisting but quick, unambiguous and easy.
FYI I said "squawk seven thousand" all through my radar board a few months back and the CAA said nothing-and funnily enough no-one misunderstands it!!