diff --git a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsArray.cs b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsArray.cs
index e2306f6..63cf3b2 100644
--- a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsArray.cs
+++ b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsArray.cs
@@ -7,28 +7,28 @@ namespace Recyclable.Collections.Benchmarks
 		public void List_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
-			var list = new List<long>(TestObjectCount);
+			var list = new List<long>();
 			list.AddRange(data);
 		}
 
 		public void PooledList_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
-			using var list = new PooledList<long>(capacity: TestObjectCount, ClearMode.Auto);
+			using var list = new PooledList<long>(ClearMode.Auto);
 			list.AddRange(data);
 		}
 
 		public void RecyclableList_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
-			using var list = new RecyclableList<long>(TestObjectCount);
+			using var list = new RecyclableList<long>();
 			list.AddRange(data);
 		}
 
 		public void RecyclableLongList_AddRangeWhenSourceIsArray()
 		{
 			var data = TestObjects;
-			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize);
 			list.AddRange(data);
 		}
 	}
diff --git a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIEnumerable.cs b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIEnumerable.cs
index 4da90ff..804f29a 100644
--- a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIEnumerable.cs
+++ b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIEnumerable.cs
@@ -7,28 +7,28 @@ namespace Recyclable.Collections.Benchmarks
 		public void List_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
-			var list = new List<long>(TestObjectCount);
+			var list = new List<long>();
 			list.AddRange(data);
 		}
 
 		public void PooledList_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
-			using var list = new PooledList<long>(capacity: TestObjectCount, ClearMode.Auto);
+			using var list = new PooledList<long>(ClearMode.Auto);
 			list.AddRange(data);
 		}
 
 		public void RecyclableList_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
-			using var list = new RecyclableList<long>(TestObjectCount);
+			using var list = new RecyclableList<long>();
 			list.AddRange(data);
 		}
 
 		public void RecyclableLongList_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
-			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize);
 			list.AddRange(data);
 		}
 	}
diff --git a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIList.cs b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIList.cs
index d8a10dc..e09ce55 100644
--- a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIList.cs
+++ b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsIList.cs
@@ -7,34 +7,35 @@ namespace Recyclable.Collections.Benchmarks
 		public void Array_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<long>)TestObjectsAsRecyclableLongList;
-			data.CopyTo(TestObjects, 0);
+			var list = new long[TestObjectCount];
+			data.CopyTo(list, 0);
 		}
 
 		public void List_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<long>)TestObjectsAsRecyclableLongList;
-			var list = new List<long>(TestObjectCount);
+			var list = new List<long>();
 			list.AddRange(data);
 		}
 
 		public void PooledList_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<long>)TestObjectsAsRecyclableLongList;
-			using var list = new PooledList<long>(capacity: TestObjectCount, ClearMode.Auto);
+			using var list = new PooledList<long>(ClearMode.Auto);
 			list.AddRange(data);
 		}
 
 		public void RecyclableList_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<long>)TestObjectsAsRecyclableLongList;
-			using var list = new RecyclableList<long>(TestObjectCount);
+			using var list = new RecyclableList<long>();
 			list.AddRange(data);
 		}
 
 		public void RecyclableLongList_AddRangeWhenSourceIsIList()
 		{
 			var data = (IList<long>)TestObjectsAsRecyclableLongList;
-			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize);
 			list.AddRange(data);
 		}
 	}
diff --git a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsList.cs b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsList.cs
index 3cdb696..6409998 100644
--- a/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsList.cs
+++ b/Recyclable.Collections.Benchmarks/Benchmarks/AddRangeWhenSourceIsList.cs
@@ -7,34 +7,35 @@ namespace Recyclable.Collections.Benchmarks
 		public void Array_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
-			data.CopyTo(TestObjects, 0);
+			var list = new long[TestObjectCount];
+			data.CopyTo(list, 0);
 		}
 
 		public void List_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
-			var list = new List<long>(TestObjectCount);
+			var list = new List<long>();
 			list.AddRange(data);
 		}
 
 		public void PooledList_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
-			using var list = new PooledList<long>(capacity: TestObjectCount, ClearMode.Auto);
+			using var list = new PooledList<long>(ClearMode.Auto);
 			list.AddRange(data);
 		}
 
 		public void RecyclableList_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
-			using var list = new RecyclableList<long>(TestObjectCount);
+			using var list = new RecyclableList<long>();
 			list.AddRange(data);
 		}
 
 		public void RecyclableLongList_AddRangeWhenSourceIsList()
 		{
 			var data = TestObjectsAsList;
-			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize, expectedItemsCount: TestObjectCount);
+			using var list = new RecyclableLongList<long>(minBlockSize: BlockSize);
 			list.AddRange(data);
 		}
 	}