K-FROG can't be thrilled with the change, especially since they've claimed they are upgrading their signal into Orange County (read spent $$$). BUT they were NEVER considered by advertisers to be anything other than a station serving the Inland Empire.
Despite being mentioned here, I see no recent modifications or CPs
EDIT: I just looked at the coverage maps from Radio-Locator and they're almost identical. The two signals 93.9 and 105.1 have around the same power, too (18kw).
KMZTīs antenna is much closer to the ground on Wilson, resulting in some considerable shadowing. KZLA is the bbetter signal