Dear Pistongone,
With respect, "Toususse" is => TOUSSUS.
When you tell it on the frequency, don't say the final "S", just "Tou-ssu".
All Brits say "Toussoussss", and it is very funny :-)
If you say "Toussus" without the final "S", I promise you will impress the ATC !
frog_ATC
PS : hello Ian, I think we know each other :-)