diff --git a/benchmarks/treenode-array-vs-object-creation.js b/benchmarks/treenode-array-vs-object-creation.js
index 815a93c..ac599b3 100644
--- a/benchmarks/treenode-array-vs-object-creation.js
+++ b/benchmarks/treenode-array-vs-object-creation.js
@@ -1,5 +1,13 @@
 var Benchmark = require('benchmark');
 
+function Node(k, v, p, l, r) {
+    this.key    = k;
+    this.value  = v;
+    this.parent = p;
+    this.left   = l;
+    this.right  = r;
+}
+
 new Benchmark.Suite()
     .add('Object node creation', function() {
         var parent = {
@@ -41,9 +49,20 @@ new Benchmark.Suite()
         left[2]   = parent;
         right[2]  = parent;
     })
+    .add('Class node creation', function() {
+        var parent = new Node('some_key',    1234123412,         null, null, null);
+        var left   = new Node('left_child',  'asdfoasjdfpasdjf', null, null, null);
+        var right  = new Node('right_child', 'qwerqwerqwerqwwq', null, null, null);
+
+        parent[3] = left;
+        parent[4] = right;
+        left[2]   = parent;
+        right[2]  = parent;
+    })
     .on('complete', function() {
         console.log(this[0].toString());
         console.log(this[1].toString());
+        console.log(this[2].toString());
 
         console.log('Fastest is ' + this.filter('fastest').pluck('name'));
     })
diff --git a/benchmarks/treenode-array-vs-object-manipulation.js b/benchmarks/treenode-array-vs-object-manipulation.js
index 1d66275..0bd696f 100644
--- a/benchmarks/treenode-array-vs-object-manipulation.js
+++ b/benchmarks/treenode-array-vs-object-manipulation.js
@@ -1,5 +1,13 @@
 var Benchmark = require('benchmark');
 
+function Node(k, v, p, l, r) {
+    this.k = k;
+    this.v = v;
+    this.p = p;
+    this.l = l;
+    this.r = r;
+}
+
 var array = {
     parent: ['some_key',    1234123412,         null, null, null],
     left:   ['left_child',  'asdfoasjdfpasdjf', null, null, null],
@@ -36,6 +44,12 @@ var objectS = {
     right:  { k:   'right child', v: 'qwerqwerqwerqwwq',  p: null, l:   null, r:  null }
 };
 
+var objectC = {
+    parent: new Node('some_key',    1234123412,         null, null, null),
+    left:   new Node('left_child',  'asdfoasjdfpasdjf', null, null, null),
+    right:  new Node('right_child', 'qwerqwerqwerqwwq', null, null, null)
+};
+
 new Benchmark.Suite()
     .add('Object node manipulation', function() {
         var temp      = object.parent;
@@ -57,7 +71,7 @@ new Benchmark.Suite()
         object.right.right  = null;
     })
     .add('Object node manipulation - small key', function() {
-        var temp      = objectS.parent;
+        var temp       = objectS.parent;
         objectS.parent = objectS.left;
         objectS.left   = objectS.right;
         objectS.right  = temp;
@@ -75,6 +89,25 @@ new Benchmark.Suite()
         objectS.right.l   = null;
         objectS.right.r  = null;
     })
+    .add('Class node manipulation', function() {
+        var temp       = objectC.parent;
+        objectC.parent = objectC.left;
+        objectC.left   = objectC.right;
+        objectC.right  = temp;
+
+        objectC.parent.p = null;
+        objectC.parent.l = objectC.left;
+        objectC.parent.r = objectC.right;
+
+
+        objectC.left.p   = objectC.parent;
+        objectC.left.l   = null;
+        objectC.left.r   = null;
+
+        objectC.right.p  = objectC.parent;
+        objectC.right.l  = null;
+        objectC.right.r  = null;
+    })
     .add('Array node manipulation', function() {
         var temp        = array.parent;
         array.parent    = array.left;
@@ -97,6 +130,7 @@ new Benchmark.Suite()
         console.log(this[0].toString());
         console.log(this[1].toString());
         console.log(this[2].toString());
+        console.log(this[3].toString());
 
         console.log('Fastest is ' + this.filter('fastest').pluck('name'));
     })