Has anyone tried these tracked services (for important docs) ?
Airsure £5, International Signed For £5.15.
It's hard to work out the difference but looks like for EU countries (France specifically) that have tracking as standard it's far better to go for "Signed For" as you get a signature plus all the tracking you'd get with "Airsure".
But Airsure is very slightly quicker.
Really is not that clear from RM website though.