diff --git a/dbfp.py b/dbfp.py
index 2fb4576..742fb4d 100644
--- a/dbfp.py
+++ b/dbfp.py
@@ -54,7 +54,7 @@ def compareFingerprintDir(file_in, fp_dir):
   db = FingerprintDB()
   db.scanDBFile(file_in)
   md5_db = db.getMD5DB()
-  md5_tables = db.getMD5TablesArray()
+  md5_tables = db.getMD5Tables()
   fp = FingerprintIndex()
   fp.openIndex(fp_dir)
   fp_list = fp.findFP(md5_db, md5_tables)
diff --git a/libs/fingerprint.py b/libs/fingerprint.py
index 3ff9bc0..9803594 100644
--- a/libs/fingerprint.py
+++ b/libs/fingerprint.py
@@ -46,16 +46,14 @@ class FingerprintDB:
     self.table_names = []
     self.tables = {}
     self.db_hash = None
-    # hashtables of json data
-    self.tables_json = {}
-    self.db_hash_json = None
+    self.table_hashes = None
     # fingerprint metadata
     self.db_name = ""
     self.app_name = ""
     self.app_ver = ""
     self.notes = ""
     self.filein = ""
-    self.scanned = False
+    self.init = False
 
   #
   def scanDBFile(self, filein):
@@ -81,13 +79,13 @@ class FingerprintDB:
       return -3
 
     # flag is used to determine if the class has data
-    self.scanned = True
+    self.init = True
     self.filein = filein
     return 1
 
   #
   def writeFingerprint(self):
-    if (not self.scanned):
+    if (not self.init):
       return
 
     try:
@@ -103,7 +101,7 @@ class FingerprintDB:
 
   #
   def writeFingerprintFile(self, filename):
-    if (not self.scanned):
+    if (not self.init):
       return
 
     try:
@@ -131,11 +129,12 @@ class FingerprintDB:
   #
   def compareDB(self, filejson):
     """ return the percentage of the match between two fingerprints """
-    if (not self.scanned):
+    if (not self.init):
       return
-    self.__importJsonDBSchema(filejson)
-    result = self.__DBSchemaCompare()
-    print "[ Percetage == {}]".format(result)
+    fp = FingerprintDB();
+    fp.__importJsonDBSchema(filejson)
+    result = self.__DBSchemaCompare(fp)
+    print "[ Percetage == %f]".format(result)
     return result
 
   # 
@@ -143,15 +142,19 @@ class FingerprintDB:
     return self.db_hash
 
   #
-  def getMD5TablesArray(self):
-    retval = []
+  def getMD5Tables(self):
+    if (self.table_hashes):
+      return self.table_hashes
+
+    self.table_hashes = []
     for key in self.tables.keys():
-      retval.append(self.tables[key].hash())
-    return retval
+      self.table_hashes.append(self.tables[key].hash())
+    return self.table_hashes
 
   #
   def __importJsonDBSchema(self, file_json):
     """ import fingerprint from a json file """
+    self.__init__()
     tables = {}
     try:
       fh = open(file_json, "r")
@@ -167,8 +170,9 @@ class FingerprintDB:
         newTable.importTable(table_name, tb[table_name], dbmt[table_name], dbht[table_name])
         tables[table_name] = newTable
 
-      self.tables_json  = tables
-      self.db_hash_json = dbmd5
+      self.tables       = tables
+      self.db_hash      = dbmd5
+      self.table_hashes = dbht
     except Exception as ex:
       logging.error("ERROR: problem loading json file: \n{}\n{}".format(file_json, ex))
 
@@ -176,7 +180,7 @@ class FingerprintDB:
   def __DBMD5Compare(self):
     pass
 
-  def __DBSchemaCompare(self):
+  def __DBSchemaCompare(self, fp):
     # the json database schema definition is what our tools is expecting...
     # ...so we use it as the baseline
     # look for table, if exists, compare each 
@@ -185,18 +189,18 @@ class FingerprintDB:
     diff_num   = 0
     diff_total = 0
     all_total  = 0
-    for tableName in self.tables_json.keys():
+    for tableName in fp.tables.keys():
       try:
         print "[[ Comparing Table: " + tableName + " ]]"
         table = self.tables[tableName]
         if (table):
-          if not (self.tables_json[tableName].hash() == table.hash()):
-            logging.info("*** Hash difference 1:{}!={}".format(self.tables_json[tableName].hash(), table.hash()))
-            (total, diff_num) = self.__CompareTable(self.tablesJson[tableName], table)
+          if not (fp.tables[tableName].hash() == table.hash()):
+            logging.info("*** Hash difference 1:{}!={}".format(fp.tables[tableName].hash(), table.hash()))
+            (total, diff_num) = self.__CompareTable(fp.tables[tableName], table)
             all_total += total
             diff_total += diff_num
           else:
-            # get the number of fields from the other table and add to the all_total
+            all_total += 10
             logging.info("Table {} is IDENTICAL (to json fingerprint)".format(tableName))
         else:
           self.__FuzzyTable()
@@ -207,16 +211,14 @@ class FingerprintDB:
         logging.info("Table {} not EXISTS (to json fingerprint)".format(tableName))
 
     print "diff_total=={},  all_total=={}".format(diff_total, all_total)
-    if (all_total == diff_total):
-      percentage = 0
-    else:
-      # percentage = 100
-      if (diff_total > 0):
-        percentage = float(diff_total / all_total)
-      else:
-        percentage = 100
-        # percentage = percentage - float(diff_total / all_total)
 
+    if (diff_total > 0):
+      if (diff_total == all_total):
+        percentage = 0
+      else:
+        percentage = float(diff_total / all_total)
+    else:
+      percentage = 100
     return percentage
 
   #
@@ -245,13 +247,8 @@ class FingerprintDB:
       else:
         fields_diff_count += 1
 
-    if (prop_error_count == 0 and fields_diff_count == 0):
-      print "100% compatible"
-    else:
-      totals = prop_total_count + fields_total_count
-      diff_total = prop_error_count + fields_diff_count
-      print "Table difference found: " + str(diff_total)
-      #print str((diff_total/totals) * 100) + '% compatible   total == ' + str(totals) + "   diff_total == " + str(diff_total)
+    totals = prop_total_count + fields_total_count
+    diff_total = prop_error_count + fields_diff_count
     return (totals, diff_total)
 
   # look at un-identified tables and try to match fields by their properties
@@ -410,9 +407,9 @@ class TableSchema:
 
   #
   def importTable(self, tbName, fields, sqlStr, hashStr):
-    self.tableName = tbName
-    self.sqlStr = sqlStr
-    self.fields = fields
+    self.tableName  = tbName
+    self.sqlStr     = sqlStr
+    self.fields     = fields
     self.sqlStrHash = hashStr