diff --git a/src/drivers/usr/src/MuFactors.cpp b/src/drivers/usr/src/MuFactors.cpp
index 166151877..58f917ba1 100755
--- a/src/drivers/usr/src/MuFactors.cpp
+++ b/src/drivers/usr/src/MuFactors.cpp
@@ -19,6 +19,10 @@
 
 #include <fstream>
 #include <iostream>
+#include <tgf.h>
+
+extern GfLogger* PLogUSR;
+#define LogUSR (*PLogUSR)
 
 MuFactors::MuFactors()
 {
@@ -48,7 +52,7 @@ void MuFactors::read(const std::string& datadir, const std::string& trackname)
         mSect.push_back(sect);
         mMinMuFactor = 1.0;
         printMuFactors();
-        std::cout << "readMuFactors(): data file " << datFile << " not found, using default factor" << std::endl;
+        LogUSR.info("Couldn't load : %s, using default factor\n", datFile.c_str());
     }
 }
 
diff --git a/src/drivers/usr/src/PathMargins.cpp b/src/drivers/usr/src/PathMargins.cpp
index 9689b3b2b..111b4d10c 100755
--- a/src/drivers/usr/src/PathMargins.cpp
+++ b/src/drivers/usr/src/PathMargins.cpp
@@ -18,7 +18,10 @@
 #include "PathMargins.h"
 
 #include <fstream>
-#include <iostream>
+#include <tgf.h>
+
+extern GfLogger* PLogUSR;
+#define LogUSR (*PLogUSR)
 
 PathMargins::PathMargins()
 {
@@ -45,7 +48,7 @@ void PathMargins::read(const std::string &datafile)
         sect.left = 1.2;
         sect.right = 1.2;
         mPathMargin.push_back(sect);
-        std::cout << "readPathMargins(): data file " << datafile << " not found, using default margins" << std::endl;
+        LogUSR.info("Couldn't load : %s, using default margins\n", datafile.c_str());
     }
 }
 
diff --git a/src/drivers/usr/src/pit.cpp b/src/drivers/usr/src/pit.cpp
index 6e1f8fe6b..615bf0f55 100755
--- a/src/drivers/usr/src/pit.cpp
+++ b/src/drivers/usr/src/pit.cpp
@@ -27,6 +27,7 @@ Pit::Pit() :
     mTeamCar(NULL),
     mPit(NULL),
     mPitInfo(NULL),
+    mTiresChangeTime(30.0),
     mMaxDamage(7000.0),
     mMaxDamageDist(30000.0),
     mPreEntryMargin(100.0)
@@ -39,7 +40,11 @@ void Pit::init(const tTrack* track, const tSituation* situation, MyCar* car, int
     void* handle = NULL;
     std::string tmpstr = std::string(GetLocalDir()) + "config/raceman/endrace.xml";
     handle = GfParmReadFile(tmpstr.c_str(), GFPARM_RMODE_STD);
-    mTiresChangeTime = GfParmGetNum(handle, "Race", "all tires change time", (char*)NULL, 30.0);
+    if (handle)
+    {
+        mTiresChangeTime = GfParmGetNum(handle, "Race", "all tires change time", (char*)NULL, 30.0);
+        GfParmReleaseHandle(handle);
+    }
 
     if (pitdamage)
     {