diff --git a/Projects/Server.Tests/Tests/PropertyList/ObjectPropertyListSpanAddTests.cs b/Projects/Server.Tests/Tests/PropertyList/ObjectPropertyListSpanAddTests.cs
index 16d48ec9f..e7b2007d8 100644
--- a/Projects/Server.Tests/Tests/PropertyList/ObjectPropertyListSpanAddTests.cs
+++ b/Projects/Server.Tests/Tests/PropertyList/ObjectPropertyListSpanAddTests.cs
@@ -37,13 +37,15 @@ public class ObjectPropertyListSpanAddTests
     }
 
     [Fact]
-    public void SpanAdd_ProducesSameBytesAsStringAdd()
+    public void SpanAdd_ProducesSameBytesAsStringArgument()
     {
+        // Add(int, string) routes through the interpolation InternalAdd; Add(int, ReadOnlySpan<char>)
+        // through the span InternalAdd. Both must produce identical bytes and hash.
         var fromString = new ObjectPropertyList(null);
-        fromString.Add("Hello World");
+        fromString.Add(1070722, "Hello World");
 
         var fromSpan = new ObjectPropertyList(null);
-        fromSpan.Add("Hello World".AsSpan());
+        fromSpan.Add(1070722, "Hello World".AsSpan());
 
         Assert.Equal(Decode(fromString), Decode(fromSpan));
         Assert.Equal(fromString.Hash, fromSpan.Hash);
diff --git a/Projects/Server/PropertyList/IPropertyList.cs b/Projects/Server/PropertyList/IPropertyList.cs
index b0a39a0bb..f66c8cd61 100644
--- a/Projects/Server/PropertyList/IPropertyList.cs
+++ b/Projects/Server/PropertyList/IPropertyList.cs
@@ -29,9 +29,6 @@ public interface IPropertyList : ISelfInterpolatedStringHandler
     /** Convenience method for $"{argument}". */
     public void Add(int number, string argument);
 
-    /** Convenience method for $"{text}". */
-    public void Add(string text);
-
     /** Convenience method for span-based text without allocating a string. */
     public void Add(ReadOnlySpan<char> argument);
 
diff --git a/Projects/Server/PropertyList/ObjectPropertyList.cs b/Projects/Server/PropertyList/ObjectPropertyList.cs
index 2ee1f35cc..ffe6a7315 100644
--- a/Projects/Server/PropertyList/ObjectPropertyList.cs
+++ b/Projects/Server/PropertyList/ObjectPropertyList.cs
@@ -148,7 +148,6 @@ public sealed class ObjectPropertyList : IPropertyList, IDisposable
     }
 
     public void Add(int number, string? arguments) => InternalAdd(number, $"{arguments}");
-    public void Add(string argument) => InternalAdd(GetStringNumber(), $"{argument}");
     public void Add(int number, int value) => InternalAdd(number, $"{value}");
     public void AddLocalized(int value) => InternalAdd(GetStringNumber(), $"{value:#}");
     public void AddLocalized(int number, int value) => InternalAdd(number, $"{value:#}");
diff --git a/Projects/Server/PropertyList/OplTextBlock.cs b/Projects/Server/PropertyList/OplTextBlock.cs
index fdd157cad..e420c99fc 100644
--- a/Projects/Server/PropertyList/OplTextBlock.cs
+++ b/Projects/Server/PropertyList/OplTextBlock.cs
@@ -23,11 +23,11 @@ namespace Server;
 // Use with `using var block = list.TextBlock();`. ref struct: single-threaded OPL build only.
 public ref struct OplTextBlock
 {
-    private readonly ObjectPropertyList _list;
+    private readonly IPropertyList _list;
     internal ValueStringBuilder _builder;
     private bool _any;
 
-    internal OplTextBlock(ObjectPropertyList list)
+    internal OplTextBlock(IPropertyList list)
     {
         _list = list;
         _builder = ValueStringBuilder.Create();