Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcConfigRunHeader.h
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcConfigRunHeader.h	(revision 7880)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcConfigRunHeader.h	(revision 8024)
@@ -84,11 +84,10 @@
     void    SetMissPointingY(Float_t x) {fMissPointingY=x;}
 
-    TArrayF GetLightCollectionFactor() const {return fLightCollectionFactor; }
-    TArrayF GetLightCollectionFactorOuter() const 
-      {return fLightCollectionFactorOuter; }
+    const TArrayF &GetLightCollectionFactor() const {return fLightCollectionFactor; }
+    const TArrayF &GetLightCollectionFactorOuter() const {return fLightCollectionFactorOuter; }
 
     Float_t GetMirrorFraction() const { return fMirrorFraction; }
 
-    TArrayF GetIncidentTheta() const {return fIncidentTheta;}
+    const TArrayF &GetIncidentTheta() const {return fIncidentTheta;}
 
     void   AddMirror(Int_t id)