Hot AC? Tried and failed on that frequency. Twice.
I don't see SS trying to make the third time a charm.
What was the competitive situation at that time? You have to remember, this isn't about one station getting ratings. It's all about synergy within the cluster. How will it help the cash cow? If they do a Hot AC on 95.7 and get a 2.0 share, yet succeed in stealing 2 shares of Star's 25-54 numbers, and help protect B-97.5 from a potential competitor, that could be considered a success.
That's why I say Jack-FM might not be the disappointment that you think it is. But I guess we'll see if South Central thinks it's worth keeping. They might do what some other stations have done when their "Jack" contract ran out. They simply dropped the "Jack" imaging but kept the "adult hits" format, programmed it locally, and just called it something else.