This is a NON-operation delivery! No OPSEC needed!
OPSEC is defined as "Operations Security". Since this is a factory delivery and "operations" will not begin officially until next year then the flight does not meet the definition.
BTW, when we deployed from the US to the UK we had an air-refueling over Maine, flying non-stop. Not sure why they would stop except the RAF aircrew are not qualified for boom A/R.