Pythia8::SettableColourReconnectionBase Node1 Pythia8::SettableColourReconnectionBase + SettableColourReconnectionBase() + ~SettableColourReconnectionBase() + canReconnectResonanceSystems() + doReconnectResonanceSystems() # _init() Node2 UserHooks Node2->Node1 Node2->Node1 #m_crHook