diff --git a/1.2/Assemblies/1Fishery.dll b/1.2/Assemblies/1Fishery.dll
index fb8a78a..f9df8dc 100644
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diff --git a/1.2/Assemblies/1Fishery.pdb b/1.2/Assemblies/1Fishery.pdb
index 2311bc9..2406e76 100644
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diff --git a/1.3/Assemblies/1Fishery.dll b/1.3/Assemblies/1Fishery.dll
index b710a1d..808892d 100644
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diff --git a/1.3/Assemblies/1Fishery.pdb b/1.3/Assemblies/1Fishery.pdb
index 1149983..0a75ad6 100644
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diff --git a/1.4/Assemblies/1Fishery.dll b/1.4/Assemblies/1Fishery.dll
index bbb3bb1..2ae2726 100644
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diff --git a/1.4/Assemblies/1Fishery.pdb b/1.4/Assemblies/1Fishery.pdb
index fef27a7..107aa6e 100644
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diff --git a/1.5/Assemblies/1Fishery.dll b/1.5/Assemblies/1Fishery.dll
index fb79dd2..e875424 100644
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diff --git a/1.5/Assemblies/1Fishery.pdb b/1.5/Assemblies/1Fishery.pdb
index d1e75e1..d5e6082 100644
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diff --git a/Source/FisheryLib/Collections/FishSet.cs b/Source/FisheryLib/Collections/FishSet.cs
index 778b2f4..8eeb181 100644
--- a/Source/FisheryLib/Collections/FishSet.cs
+++ b/Source/FisheryLib/Collections/FishSet.cs
@@ -149,6 +149,21 @@ public class FishSet<T> : ISet<T>, IReadOnlyCollection<T>, ICollection
 		Initialize(minimumCapacity);
 	}
 
+	public unsafe FishSet(int minimumCapacity, delegate*<T?, int> hashCodeGetter = default,
+		delegate*<T?, T?, bool> equalityComparer = default)
+	{
+		InitializeDelegates(hashCodeGetter, equalityComparer);
+		Initialize(minimumCapacity);
+	}
+
+	public unsafe FishSet(int minimumCapacity, T defaultValue, delegate*<T?, int> hashCodeGetter = default,
+		delegate*<T?, T?, bool> equalityComparer = default)
+	{
+		_defaultValue = defaultValue;
+		InitializeDelegates(hashCodeGetter, equalityComparer);
+		Initialize(minimumCapacity);
+	}
+
 	[MemberNotNull(nameof(_buckets))]
 	[MemberNotNull(nameof(_tails))]
 	private void Initialize(int minimumCapacity = 0)
@@ -163,6 +178,15 @@ public class FishSet<T> : ISet<T>, IReadOnlyCollection<T>, ICollection
 		_wrapAroundMask = _buckets.Length - 1;
 	}
 
+	private unsafe void InitializeDelegates(delegate*<T?, int> hashCodeGetter, delegate*<T?, T?, bool> equalityComparer)
+	{
+		if (hashCodeGetter != default)
+			_hashCodeGetter = hashCodeGetter;
+		
+		if (equalityComparer != default)
+			_equalityComparer = equalityComparer;
+	}
+
 	public FishSet(IEnumerable<T> entries) : this(0)
 	{
 		foreach (var entry in entries)
diff --git a/Source/FisheryLib/Collections/FishTable.cs b/Source/FisheryLib/Collections/FishTable.cs
index 12a8b40..8c956ed 100644
--- a/Source/FisheryLib/Collections/FishTable.cs
+++ b/Source/FisheryLib/Collections/FishTable.cs
@@ -258,6 +258,25 @@ public class FishTable<TKey, TValue> : IDictionary<TKey, TValue>, IDictionary, I
 		Initialize(minimumCapacity);
 	}
 
+	public unsafe FishTable(int minimumCapacity, delegate*<ref TKey, int> keyHashCodeByRefGetter = default,
+		delegate*<TKey?, int> keyHashCodeGetter = default,
+		delegate*<ref TKey, ref TKey, bool> keyEqualityByRefComparer = default,
+		delegate*<TKey?, TKey?, bool> keyEqualityComparer = default)
+	{
+		InitializeDelegates(keyHashCodeByRefGetter, keyHashCodeGetter, keyEqualityByRefComparer, keyEqualityComparer);
+		Initialize(minimumCapacity);
+	}
+
+	public unsafe FishTable(int minimumCapacity, TKey defaultKey,
+		delegate*<ref TKey, int> keyHashCodeByRefGetter = default, delegate*<TKey?, int> keyHashCodeGetter = default,
+		delegate*<ref TKey, ref TKey, bool> keyEqualityByRefComparer = default,
+		delegate*<TKey?, TKey?, bool> keyEqualityComparer = default)
+	{
+		_defaultEntry.Key = defaultKey;
+		InitializeDelegates(keyHashCodeByRefGetter, keyHashCodeGetter, keyEqualityByRefComparer, keyEqualityComparer);
+		Initialize(minimumCapacity);
+	}
+
 	[MemberNotNull(nameof(_buckets))]
 	[MemberNotNull(nameof(_tails))]
 	private void Initialize(int minimumCapacity = 0)
@@ -272,6 +291,23 @@ public class FishTable<TKey, TValue> : IDictionary<TKey, TValue>, IDictionary, I
 		_wrapAroundMask = _buckets.Length - 1;
 	}
 
+	private unsafe void InitializeDelegates(delegate*<ref TKey, int> keyHashCodeByRefGetter,
+		delegate*<TKey?, int> keyHashCodeGetter, delegate*<ref TKey, ref TKey, bool> keyEqualityByRefComparer,
+		delegate*<TKey?, TKey?, bool> keyEqualityComparer)
+	{
+		if (keyHashCodeByRefGetter != default)
+			_keyHashCodeByRefGetter = keyHashCodeByRefGetter;
+		
+		if (keyHashCodeGetter != default)
+			_keyHashCodeGetter = keyHashCodeGetter;
+		
+		if (keyEqualityByRefComparer != default)
+			_keyEqualityByRefComparer = keyEqualityByRefComparer;
+		
+		if (keyEqualityComparer != default)
+			_keyEqualityComparer = keyEqualityComparer;
+	}
+
 	public FishTable(IEnumerable<KeyValuePair<TKey, TValue>> entries) : this(0)
 		=> AddRange(entries);
 
diff --git a/Source/FisheryLib/Collections/IndexedFishSet.cs b/Source/FisheryLib/Collections/IndexedFishSet.cs
index 9d1b106..58b37e4 100644
--- a/Source/FisheryLib/Collections/IndexedFishSet.cs
+++ b/Source/FisheryLib/Collections/IndexedFishSet.cs
@@ -5,6 +5,7 @@
 
 using System.Collections;
 using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
 
 namespace FisheryLib.Collections;
 
@@ -17,10 +18,11 @@ namespace FisheryLib.Collections;
 public class IndexedFishSet<T> : IList<T>, IList, IReadOnlyList<T>
 {
 	private readonly List<T> _items = [];
-	private readonly FishTable<T, int> _indices = new();
+	private readonly FishTable<T, int> _indices;
 	
 	public T this[int index]
 	{
+		[MethodImpl(MethodImplOptions.AggressiveInlining)]
 		get => _items[index];
 		set
 		{
@@ -31,7 +33,23 @@ public class IndexedFishSet<T> : IList<T>, IList, IReadOnlyList<T>
 		}
 	}
 
-	public List<T> ReadOnlyList => _items;
+	public List<T> ReadOnlyList
+	{
+		[MethodImpl(MethodImplOptions.AggressiveInlining)]
+		get => _items;
+	}
+
+	public ReadOnlySpan<T> Span
+	{
+		[MethodImpl(MethodImplOptions.AggressiveInlining)]
+		get => _items.AsReadOnlySpan();
+	}
+
+	public IndexedFishSet() : this(static () => [])
+	{
+	}
+
+	public IndexedFishSet(Func<FishTable<T, int>> indicesInitializer) => _indices = indicesInitializer();
 
 	public List<T>.Enumerator GetEnumerator() => _items.GetEnumerator();
 
diff --git a/Source/FisheryLib/Fishery.cs b/Source/FisheryLib/Fishery.cs
index 74126ab..0cf57d2 100644
--- a/Source/FisheryLib/Fishery.cs
+++ b/Source/FisheryLib/Fishery.cs
@@ -29,11 +29,11 @@ namespace FisheryLib;
 [PublicAPI]
 public static class FisheryLib
 {
-	public const decimal VERSION = 0.6M;
+	public const decimal VERSION = 0.61M;
 
 	public static decimal CurrentlyLoadedVersion { get; } = VERSION;
 
-	public const string VERSION_STRING = "0.6";
+	public const string VERSION_STRING = "0.6.1";
 
 	// public static string GetVersion()
 	// {