The first time I heard about WSGW coming in in Chicago was around 1967. A friend of my relatives was taking us on a tour of the Chicago Circle Campus and talking about listening to Minor League PBP on a Saginaw station. It took a while to figure out it was WSGW. The lobe to the SW is equivalent to about 17 kW Daytime based on minimum Class III/Class B efficiency of 282 mV/m @ 1 km for 1 kW.
Again, good to have you back...
The only times I've heard WSGW here northwest of Chicago has been when WBBM has been off. Which certainly is very rare. But when it has happened during the daytime, WSGW has been perfectly audible on a good radio. Albeit usually for only a couple of minutes.