Same color palette range for several TH3 drawn with glcolz

[Wile_E_Coyote]

I once applied a “brutal fix” to such a problem.
I modified all relevant histograms destroying two bins:
MyHisto->SetBinContent(1, 1, MyMinimum);
MyHisto->SetBinContent(MyHisto->GetNbinsX(), MyHisto->GetNbinsY(), MyMaximum);