Suit, supreme, supermarket - yod dropping

[Verona_82]

I've recently looked the words "suit", "supreme" and "supermarket" up in a number of dictionaries, including pronunciation ones, just to make sure there are two variants of pronunciation given - /u)/ and /ju)/. I scoured my memory for the last time I heard the latter, and was surprised to find out it was years ago in my English lessons at school. Assuming both are valid (in British English?), I'd like to ask if the latter is in current usage. Is it a regional thing?

 

[Tdol]

I don't hear them used much in BrE nowadays.

 

[Raymott]

We don't say 'syuit' in AusE. I doubt whether anybody has ever said 'syupermarker', or 'syuper'-anything. There's a difference between 'suit', and the other words. Of course, 'suite', is pronounced 'sweet', so you can't generalise about words starting with 'su', or a consonant followed by 'u'.
Many of these words do have an interpolated 'y' sound, as in "bugle, cute, duty, future (but not suture), tutorial ..." and many don't. And yes, there are regional differences in some.