Wolfster why dont you use the abbreviation 'Lieut' instead of Lt? Lieut is the correct English version. Didn't use Lt until the raf had forms of flight lieutenants and it became too long so they made it Lt.
Imho, Lieut makes it look more shoddy and foreign, I prefer Lt Personally... But whilst we're at it, Rct should be Rec, that's how the British army had it up until WW2; once again, it's a matter of preference.
On top of that, seeing as the master race (The Brits) Say Lieutenant as "Leftenant" how would you go abouts saying Lieut, would it just be Left? It makes no sense xD