diff --git a/src/EntityConverter.cpp b/src/EntityConverter.cpp
index e9ad9ca..7aadede 100644
--- a/src/EntityConverter.cpp
+++ b/src/EntityConverter.cpp
@@ -33,9 +33,11 @@
 
 
 
-EntityConverter::EntityConverter (const std::string &entityMapFile) : 
-    OFFSET_PLAYER(32.0), OFFSET_PICKUP(2.0), BRIGHTNESS_ADJUST(50.0),
-    OUTPUT_PRECISION(10)
+EntityConverter::EntityConverter (const std::string &entityMapFile) 
+                                 : OFFSET_PLAYER(32.0), 
+                                   OFFSET_PICKUP(2.0), 
+                                   BRIGHTNESS_ADJUST(50.0),
+                                   OUTPUT_PRECISION(6)
 {
   //MUST RUN extractMapInfo method after this constructor
   haveMapInfo_ = false; 
@@ -53,7 +55,7 @@ EntityConverter::EntityConverter (const std::string &entityMapFile) :
 
 EntityConverter::EntityConverter (const std::string &entityMapFile, 
     const std::string &reflexMapFile) : OFFSET_PLAYER(32.0), 
-    OFFSET_PICKUP(2.0), BRIGHTNESS_ADJUST(50.0), OUTPUT_PRECISION(10)
+    OFFSET_PICKUP(2.0), BRIGHTNESS_ADJUST(50.0), OUTPUT_PRECISION(6)
 {
   haveMapInfo_ = false;
   // game modes default to enabled
diff --git a/src/main.cpp b/src/main.cpp
index 8db3573..2830e00 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -126,11 +126,22 @@ void convert_entities(const cxxopts::Options &o, const vector<vector<string> > &
 
 int main(int argc, char** argv)
 {
+  try {
     cxxopts::Options p = arguments(argc, argv);
-
     vector<vector<string> > entities;
     bool is_ok = convert_worldspawn(p, entities);
 //    print_entities(entities);
     convert_entities(p, entities);
+  }
+  catch (cxxopts::option_not_exists_exception e) {
+    cerr << e.what() << endl
+         << "./reflex2q3 -h for usage information" << endl;
+    return -1;
+  }
+  catch (std::exception &e) {
+    cerr << e.what() << endl;
+    return -2;
+  }
+
 	return(0);
 }