diff --git a/chunk_index.cc b/chunk_index.cc
index 34c4d03..5220004 100644
--- a/chunk_index.cc
+++ b/chunk_index.cc
@@ -105,10 +105,10 @@ ChunkIndex::ChunkIndex( EncryptionKey const & key, TmpMgr & tmpMgr,
   key( key ), tmpMgr( tmpMgr ), indexPath( indexPath ), storage( 65536, 1 ),
   lastBundleId( NULL )
 {
-  dPrintf( "Chunk index (%s) instantiated and initialized, hasKey: %s\n", indexPath.c_str(),
-      key.hasKey() ? "true" : "false" );
   if ( !prohibitChunkIndexLoading )
     loadIndex( *this );
+  dPrintf( "Chunk index for %s is instantiated and initialized, hasKey: %s\n",
+      indexPath.c_str(), key.hasKey() ? "true" : "false" );
 }
 
 Bundle::Id const * ChunkIndex::findChunk( ChunkId::RollingHashPart rollingHash,
diff --git a/config.cc b/config.cc
index 71c8fc1..1e299c7 100644
--- a/config.cc
+++ b/config.cc
@@ -101,6 +101,24 @@ static struct
 
 }
 
+Config::Config()
+{
+  ConfigInfo * configInfo = new ConfigInfo;
+  storable = configInfo;
+  dPrintf( "Config is instantiated and initialized with default values\n" );
+}
+Config::Config( ConfigInfo * configInfo )
+{
+  storable = configInfo;
+  dPrintf( "Config is instantiated and initialized with supplied ConfigInfo\n" );
+}
+Config::Config( const Config & configIn, ConfigInfo * configInfo )
+{
+  *this = configIn;
+  storable = configInfo;
+  dPrintf( "Config is instantiated and initialized with supplied values\n" );
+}
+
 Config::OpCodes Config::parseToken( const char * option, const OptionType type )
 {
   for ( u_int i = 0; ConfigHelper::keywords[ i ].name; i++ )
@@ -190,6 +208,9 @@ bool Config::parseOption( const char * option, const OptionType type )
         return false;
       }
 
+      SET_STORABLE( bundle, compression_method, optionValue );
+      dPrintf( "storable[bundle][compression_method] = %s\n", GET_STORABLE( bundle, compression_method ).c_str() );
+
       return true;
       /* NOTREACHED */
       break;
diff --git a/config.hh b/config.hh
index ff7cc26..f8dda6c 100644
--- a/config.hh
+++ b/config.hh
@@ -11,6 +11,14 @@
 #include "mt.hh"
 #include "backup_exchanger.hh"
 
+#define SET_STORABLE( storage, property, value ) (\
+{\
+  dPrintf( "storable->mutable_"#storage"()->set_"#property"( "#value" )\n" ); \
+  storable->mutable_##storage()->set_##property( value ); \
+})
+
+#define GET_STORABLE( storage, property ) storable->storage().property()
+
 using std::string;
 using std::bitset;
 
@@ -31,8 +39,6 @@ public:
     }
   };
 
-  RuntimeConfig runtime;
-
   enum OptionType
   {
     Runtime,
@@ -67,8 +73,14 @@ public:
   bool parseOption( const char * option, const OptionType );
 
   string toString( google::protobuf::Message const & message );
+
+  Config( const Config &, ConfigInfo * );
+  Config( ConfigInfo * );
+  Config();
+
+  RuntimeConfig runtime;
+  ConfigInfo * storable;
 private:
-  ConfigInfo storableConfig;
 };
 
 #endif
diff --git a/zbackup.cc b/zbackup.cc
index a3486c1..9c7a37f 100644
--- a/zbackup.cc
+++ b/zbackup.cc
@@ -394,7 +394,7 @@ int main( int argc, char *argv[] )
       else
       if ( strcmp( argv[ x ], "--compression" ) == 0 && x + 1 < argc )
       {
-        fprintf( stderr, "%s is deprecated, use -O bundle.compression_method instead\n", argv[ x ] );
+        fprintf( stderr, "%s is deprecated, use -o bundle.compression_method instead\n", argv[ x ] );
         deprecated.assign( argv[ x ] + 2 );
         deprecated.append( "=" );
         deprecated.append( argv[ x + 1 ] );
@@ -654,7 +654,7 @@ invalid_option:
       if ( args.size() > 2 && strcmp( args[ fieldAction ], "edit" ) == 0 )
       {
         ZBackupBase zbb( ZBackupBase::deriveStorageDirFromBackupsFile( args[ fieldStorage ], true ),
-            passwords[ 0 ] );
+            passwords[ 0 ], true );
         if ( zbb.editConfigInteractively() )
           zbb.saveExtendedStorageInfo();
       }
@@ -662,13 +662,13 @@ invalid_option:
       if ( args.size() > 2 && strcmp( args[ fieldAction ], "set" ) == 0 )
       {
         ZBackupBase zbb( ZBackupBase::deriveStorageDirFromBackupsFile( args[ fieldStorage ], true ),
-            passwords[ 0 ] );
+            passwords[ 0 ], true );
         // -o ... like sysctl -w
       }
       else
       {
         ZBackupBase zbb( ZBackupBase::deriveStorageDirFromBackupsFile( args[ fieldStorage ], true ),
-            passwords[ 0 ] );
+            passwords[ 0 ], true );
         zbb.showConfig();
       }
     }
diff --git a/zbackup.proto b/zbackup.proto
index 3a2430d..62df774 100644
--- a/zbackup.proto
+++ b/zbackup.proto
@@ -59,6 +59,7 @@ message BundleConfigInfo
   optional string compression_method = 3 [default = "lzma"];
 }
 
+// Storable config values should always have default values
 message ConfigInfo
 {
   required ChunkConfigInfo chunk = 1;
diff --git a/zbackup_base.cc b/zbackup_base.cc
index dbd8154..b98d332 100644
--- a/zbackup_base.cc
+++ b/zbackup_base.cc
@@ -63,10 +63,12 @@ ZBackupBase::ZBackupBase( string const & storageDir, string const & password ):
                    &storageInfo.encryption_key() : 0 ),
   extendedStorageInfo( loadExtendedStorageInfo( encryptionkey ) ),
   tmpMgr( getTmpPath() ),
-  chunkIndex( encryptionkey, tmpMgr, getIndexPath(), false )
+  chunkIndex( encryptionkey, tmpMgr, getIndexPath(), false ),
+  config( extendedStorageInfo.mutable_config() )
 {
   propagateUpdate();
-  dPrintf("%s repo instantiated and initialized\n", storageDir.c_str() );
+  dPrintf("ZBackupBase for %s is instantiated and initialized\n",
+      storageDir.c_str() );
 }
 
 ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
@@ -77,10 +79,11 @@ ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
   extendedStorageInfo( loadExtendedStorageInfo( encryptionkey ) ),
   tmpMgr( getTmpPath() ),
   chunkIndex( encryptionkey, tmpMgr, getIndexPath(), false ),
-  config( configIn )
+  config( configIn, extendedStorageInfo.mutable_config() )
 {
   propagateUpdate();
-  dPrintf("%s repo instantiated and initialized\n", storageDir.c_str() );
+  dPrintf("ZBackupBase for %s is instantiated and initialized\n",
+      storageDir.c_str() );
 }
 
 ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
@@ -90,10 +93,12 @@ ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
                    &storageInfo.encryption_key() : 0 ),
   extendedStorageInfo( loadExtendedStorageInfo( encryptionkey ) ),
   tmpMgr( getTmpPath() ),
-  chunkIndex( encryptionkey, tmpMgr, getIndexPath(), prohibitChunkIndexLoading )
+  chunkIndex( encryptionkey, tmpMgr, getIndexPath(), prohibitChunkIndexLoading ),
+  config( extendedStorageInfo.mutable_config() )
 {
   propagateUpdate();
-  dPrintf("%s repo instantiated and initialized\n", storageDir.c_str() );
+  dPrintf("ZBackupBase for %s is instantiated and initialized\n",
+      storageDir.c_str() );
 }
 
 ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
@@ -104,10 +109,11 @@ ZBackupBase::ZBackupBase( string const & storageDir, string const & password,
   extendedStorageInfo( loadExtendedStorageInfo( encryptionkey ) ),
   tmpMgr( getTmpPath() ),
   chunkIndex( encryptionkey, tmpMgr, getIndexPath(), prohibitChunkIndexLoading ),
-  config( configIn )
+  config( configIn, extendedStorageInfo.mutable_config() )
 {
   propagateUpdate();
-  dPrintf("%s repo instantiated and initialized\n", storageDir.c_str() );
+  dPrintf("ZBackupBase for %s is instantiated and initialized\n",
+      storageDir.c_str() );
 }
 
 void ZBackupBase::propagateUpdate()
@@ -393,7 +399,7 @@ end:
 
 void ZBackupBase::showConfig()
 {
-  printf( "%s", config.toString( extendedStorageInfo.config() ).c_str() );
+  printf( "%s", config.toString( *config.storable ).c_str() );
 }
 
 bool ZBackupBase::editConfigInteractively()