I feel the same way. I get like Michael Savage when I don't get my Savage-fix for the day. You like Weissbach at all? I really enjoyed the one or two times Mancow subbed for him but I think he was too good so Savage hasn't had him back since.
Savage won't have on a sub who is better than he is, or as good. That's why I suspect he won't have Doyle or Mancow on. A shame.
Weisbach is ok, and Rick Roberts is ok. The thing is, I associate their voices with 'no Savage today' and get bummed. :-)