Let's move on.
In a series of interviews with Shlomo Venezia, a survivor of the Auschwitz Sonderkommando, Venezia said that the Sonderkommando units were comprised of Jews who cleaned up the gas chambers after a group of prisoners had been murdered. After its personnel dragged the corpses out of the chamber--as Venezia states, this in and of itself was an extremely disturbing process, as it was initially difficult to disentangle the bodies--the room had to be cleaned. All traces of blood and excrement had to be washed away in order to present a clean, sterile, and hence worry-free environment to the next batch of victims. After completing this task, the men of the Sonderkommando then moved through the corpses, clipping hair or pulling out gold teeth before disposing of the bodies in industrial furnaces. The expertise that the Germans acquired in carrying out mass murder was soon passed on to the men manning the Sonderkommando units.
However, Bill Armontrout, was an expert witness at the second Ernst Zundel trial in Toronto. He was warden of the Missouri State Penitentiary, which includes an execution gas chamber. He said, "One of the things that cyanide gas does, it goes in the pores of your skin. You hose the body down, see. You have to use rubber gloves, and you hose the body down to decontaminate it before you do anything else."
In court, Armontrout testified to the safety precautions that were necessary to prevent those who handled the dead criminal's body from being poisoned by the deadly HCN themselves. He said, "The ventilation fan ran for approximately one hour before two officers equipped with Scott air-packs could open the hatch of the gas chamber and remove the lead bucket containing the cyanide residue. The two officers wore rubberized disposable clothing and long rubber gloves. They hosed down the condemned man's body in the chair, paying particular attention to the hair and the clothing because of the cyanide residue, then removed him and placed him on a gurney where further decontamination took place."
I trust I don't have to explain to you what this has to do with the story of the Sonderkommando units going in and handling bodies, clipping hair, etc. So you have a problem. If the Zyklon B was weak, and known to be slow in its release, then the mass-gassings could not have occurred as you have been taught. On the other hand, if the Zyklon B was adequate to the task, and quickly released (which it wasn't), then the testimony of surviving Sonderkommandos are easily shown to be fictitious.