>>The French vowels don't coincide with the English for the most part - and it's quite hard to map them, but I'm convinced that additional -j- doesn't exist in French, and doesn't help approximation either.
>
>I stiil don't see, or understand what J has to do with it now.
>Cite which phonetic spelling of mine you're referring to.

"dew-pree" for one. The "dew-" is not the French "du-", where the u should be somewhere between an oo and an ee, it's a d yoo. Maybe you pronounce it without a j (y), or you pronounce it with one but don't even notice it. But people born in other languages do notice.