For the record, WLTW NYC also runs Delilah's breaks, weeknights 8pm-1am, but it has its own song selection. Delilah also customizes some breaks for Lite-FM, talking about chatting with someone in Brooklyn or White Plains. In smaller markets, I guess a station gets some Delilah liners for their market but not much more.
Speaking of WFEZ Miami, WPLM used to be Boston-Providence's version of WFEZ, a softer-than-Soft AC. I remember when they were a Smooth Jazz station for a while. But these days they're really not much different than WMJX or WWLI.