The WMXZ stick is just west of Freeport/US 331, about 25 miles from downtown FWB, making it the weakest FM signal relative to Fort Walton, especially compared to those signals eminating from the Hollywood Boulevard Antenna Farm. Listenable on most FM radios in FWB--it just doesn't burn up the dial like the ones 10 blocks away. And when the Average Listener hits the scan button, it may not stop at 103.1. Gotta go looking for it.
Fine in Destin, Niceville, Valpo, Sandestin and the condo communities along 30A (making your Lite AC musings reasonable, I'd think). The 60 dBu just misses PCB, though it's certainly listenable. IIRC it generally doesn't show up in the Panama City Arbitron, even at the 1-share level--pretty good evidence that it doesn't cut the mustard on the World's Most Beautiful.
Anyway, if they do indeed flip to dance/hip-hop/techno or the like to pursue the few pennies of bar/club money that isn't already spoken for, Mark should say a prayer of thanks. AC should be his biggest competition, and I'm sure "Mix" snagged a few bucks over the years--and those clients aren't going to switch to hip-hop...