A Southern accent is easy for the British to pick up, because
the phrasing is still strictly Elizabethan.  Words and phrases
are still in use in the South that are Old English.

There is quite a distinction in Southern accents.  Texans
and Kentuckians sound almost identical.  Georgia, Alabama
sound alike while, Tennessee, North Carolina and
Virginia have very different accents from region to region.
I don't pick up much of a distinct accent in Florida.

The very heavy accents are in Mississippi and Louisiana and
are what I call Southern.  Arkansas, very country.

So many people hear a Southern/country accent and automatically
think stupid.  Big mistake.

My brother-in-law from Chicago says we don't even try to say the syllables.  Ha.