diff --git a/Recyclable.Collections.Benchmarks/Program.cs b/Recyclable.Collections.Benchmarks/Program.cs
index 3bc30a1..93579d5 100644
--- a/Recyclable.Collections.Benchmarks/Program.cs
+++ b/Recyclable.Collections.Benchmarks/Program.cs
@@ -25,7 +25,8 @@ internal class Program
 			//benchmark.RecyclableList_Add();
 			//benchmark.RecyclableList_Add_WithCapacity();
 			//benchmark.RecyclableList_Contains_LastItems();
-			benchmark.RecyclableList_IndexOf_FirstItems();
+			//benchmark.RecyclableList_IndexOf_FirstItems();
+			benchmark.RecyclableList_AddRangeWhenSourceIsList();
 		}
 
 		benchmark.Cleanup();
diff --git a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs
index ed6c06e..2367de1 100644
--- a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs
+++ b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs
@@ -30,7 +30,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		//[Benchmark(Baseline = false)]
+		[Benchmark(Baseline = true)]
 		public void List_Add_WithCapacity()
 		{
 			var data = TestObjects;
@@ -42,7 +42,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void List_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
@@ -50,7 +50,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void List_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
@@ -58,7 +58,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void List_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<object>)TestObjectsAsList;
@@ -66,7 +66,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void List_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
@@ -74,7 +74,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark(Baseline = false)]
+		[Benchmark(Baseline = false)]
 		public void List_AddRange_WithCapacity()
 		{
 			var data = TestObjects;
@@ -136,7 +136,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		[Benchmark(Baseline = true)]
+		//[Benchmark(Baseline = true)]
 		public void List_IndexOf_FirstItems()
 		{
 			var data = TestObjects;
@@ -148,7 +148,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void List_IndexOf_LastItems()
 		{
 			var data = TestObjects;
diff --git a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs
index e970042..f25652d 100644
--- a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs
+++ b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs
@@ -42,7 +42,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
@@ -50,7 +50,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
@@ -58,7 +58,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<object>)TestObjectsAsList;
@@ -66,7 +66,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
@@ -74,7 +74,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsRecyclableArrayList()
 		{
 			var data = TestObjectsAsRecyclableArrayList;
@@ -82,7 +82,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_AddRange_WithCapacity()
 		{
 			var data = TestObjects;
diff --git a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs
index 2bdedf3..7e4c38c 100644
--- a/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs
+++ b/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs
@@ -14,7 +14,7 @@ namespace Recyclable.Collections.Benchmarks
 		//[Benchmark]
 		public void RecyclableList_Create_WithCapacity()
 		{
-			using var list = new RecyclableList<object>(minBlockSize: 102_400, expectedItemsCount: TestObjectCount);
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
 			DoNothing(list);
 		}
 
@@ -35,13 +35,62 @@ namespace Recyclable.Collections.Benchmarks
 		{
 			var data = TestObjects;
 			var dataCount = TestObjectCount;
-			using var list = new RecyclableList<object>(minBlockSize: 102_400, expectedItemsCount: dataCount);
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: dataCount);
 			for (var i = 0; i < dataCount; i++)
 			{
 				list.Add(data[i]);
 			}
 		}
 
+		[Benchmark]
+		public void RecyclableList_AddRangeWhenSourceIsArray()
+		{
+			var data = TestObjects;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
+		[Benchmark]
+		public void RecyclableList_AddRangeWhenSourceIsList()
+		{
+			var data = TestObjectsAsList;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
+		[Benchmark]
+		public void RecyclableList_AddRangeWhenSourceIsIList()
+		{
+			var data = (IList<object>)TestObjectsAsList;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
+		[Benchmark]
+		public void RecyclableList_AddRangeWhenSourceIsIEnumerable()
+		{
+			var data = TestObjectsAsIEnumerable;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
+		[Benchmark]
+		public void RecyclableList_AddRangeWhenSourceIsRecyclableArrayList()
+		{
+			var data = TestObjectsAsRecyclableArrayList;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
+		[Benchmark]
+		public void RecyclableList_AddRange_WithCapacity()
+		{
+			var data = TestObjects;
+			var dataCount = TestObjectCount;
+			using var list = new RecyclableList<object>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			list.AddRange(data);
+		}
+
 		//[Benchmark]
 		public void RecyclableList_GetItem()
 		{
@@ -102,7 +151,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_IndexOf_FirstItems()
 		{
 			var data = TestObjects;
@@ -114,7 +163,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_IndexOf_LastItems()
 		{
 			var data = TestObjects;