My information is sort of outdated.
My son applied when it was Sen. Kohl and Sen. Feingold. Feingold had individual interviews in Madison only, and Kohl had interviews in several locations including Appleton and Green Bay. Son also applied to Rep. Petri (6th Dist). Coincidently, since son got his nomination my home has been redistricted into the 8th District (Ribble).
Son ended up getting Feingold's nomination. Kohl's staffer called him to let him know that he was giving Kohl's nom to someone else but keeping son on his slate of 10. Petri's office called and said they wouldn't even interview son since he already had a Senatorial nomination. Over the next three months, son's nomination source was changed from Feingold, to Kohl, and then to Petri as the Academy pieced together the cadets from Wisconsin.
Lesson learned, apply to all nomination sources and you never know who you will be eventually charged against. The state is not overly competitive but there are a fair amount of applications. A majority of candidates tend to come from the Milwaukee and Madison areas with a scattering around the rest of the state.
Stealth_81