I think seeing Suffocation without Mike would be fine. Really he's just a drummer. But seeing Suffocation without Frank would totally suck. There are a million death metal vocalists out there but that's just part of the package with Frank. The hand movements, the rants and the accent. I hope everything is fine in his personal life.
10/18 - King Diamond
10/24 - Pallbearer
11/01 - Suffocation
11/30 - Devin Townsend
12/06 - Distant Worlds: the Music of Final Fantasy