Clifford: "pompous"? Dated, perhaps; but I have accidentally insulted many people with the "general you", so it might be worth sounding like a 20th-century man to avoid that.
Of course, I'm only speaking for myself though; I still use the word "lest" (and sometimes "amongst", though I don't know why), and I pronounce "iff" as "ifof". I tinker with English about as much as I do with Lojban :p