Am I missing something? The first result that comes up when I search for SWUs is this:

http://www.delta.com/content/www/en_...tificates.html

Which clearly says that K class is good enough for the Caribbean. But when I look at the actual SWU in my account it says only YBM for anything outside North America.

Is that page old and they just haven't removed it? Or is something else going on?