It's revenues tend to underperform ratings, as evidenced by WCBS in NY. Since the same company owns Star, I suspect the subject has been discussed.
In New York City, both WLTW and CBS FM both have the same power ratio (or conversion multiplier) of 0.8.
WBLS is 0.6, while broader targeted WQHT is 1.1 as is WKTU.
It almost seems as if the power ratios have as much to do with ownership as with ratings.
However, nationally Classic Hits stations tend to have a power ratio below 1.0, so they do under-perform compared to straight AC stations but that can be as much due to the AC stations having more women where there are more targeted national buys. Of course, Classic Hits is a less costly format (even in NYC with Shannon's salary) so even at a lower power ratio they have to be fairly profitable compared with other stations.