diff --git a/src/QTEventAction.cc b/src/QTEventAction.cc
index d971b0c..6b1339f 100644
--- a/src/QTEventAction.cc
+++ b/src/QTEventAction.cc
@@ -66,7 +66,7 @@ void QTEventAction::EndOfEventAction(const G4Event* event)
 
   // fill Hits output from SD
   G4int GnofHits = GasHC->entries();
-  G4cout << "PRINT>>> number of hits: " << GnofHits << G4endl;
+  //  G4cout << "PRINT>>> number of hits: " << GnofHits << G4endl;
   // Gas detector
   for ( G4int i=0; i<GnofHits; i++ ) 
   {
@@ -118,7 +118,7 @@ void QTEventAction::EndOfEventAction(const G4Event* event)
   G4int                  n_trajectories =
     (trajectoryContainer == nullptr) ? 0 : trajectoryContainer->entries();
 
-  G4cout << "PRINT>>> number of trajectories: " << n_trajectories << G4endl;
+  //  G4cout << "PRINT>>> number of trajectories: " << n_trajectories << G4endl;
   
   if(n_trajectories > 0) {
     for(auto* entry : *(trajectoryContainer->GetVector())) {  // vector<G4VTrajectory*>*
diff --git a/src/QTMagneticFieldSetup.cc b/src/QTMagneticFieldSetup.cc
index c25d45e..45ff20a 100644
--- a/src/QTMagneticFieldSetup.cc
+++ b/src/QTMagneticFieldSetup.cc
@@ -149,7 +149,7 @@ QTMagneticFieldSetup::~QTMagneticFieldSetup()
 void QTMagneticFieldSetup::SetUpBorisDriver()
 {
   // set up Boris driver from Geant4.11, follows example field01
-  G4cout << " QTFieldSetup::CreateAndSetupBorisDriver() called. " << G4endl;   
+  //  G4cout << " QTFieldSetup::CreateAndSetupBorisDriver() called. " << G4endl;   
   //  G4cout << "   1. Creating Scheme (Stepper)."  << G4endl;
   fBStepper = new QTBorisScheme(fEquation);
   //  G4cout << "   2. Creating Driver."  << G4endl;
diff --git a/src/QTOutputManager.cc b/src/QTOutputManager.cc
index 1fc51a4..032c548 100644
--- a/src/QTOutputManager.cc
+++ b/src/QTOutputManager.cc
@@ -27,7 +27,7 @@ void QTOutputManager::Book()
   analysisManager = G4AnalysisManager::Instance();
 
   if ( ! fFactoryOn ) {
-    analysisManager->SetVerboseLevel(1);
+    analysisManager->SetVerboseLevel(0);
     analysisManager->SetNtupleMerging(true);
 
     // Create directory