Both qualify as nightly regulars here. WMBD is the stronger of the two. WIRL not far behind, but the nighttime paattern isn't quite as favorable as WMBD, and WHIO is a frequent pest.Both WIRL and WMBD come up quite often on DX lists considering they are only 5 kW directional stations at night. When I lived in Madison, Wisconsin both stations could be heard and actually listened to most every night.
Bob