diff --git a/OpenNest.Tests/Fill/RemnantFinderTests.cs b/OpenNest.Tests/Fill/RemnantFinderTests.cs
index 4f137a9..0f88d87 100644
--- a/OpenNest.Tests/Fill/RemnantFinderTests.cs
+++ b/OpenNest.Tests/Fill/RemnantFinderTests.cs
@@ -326,7 +326,7 @@ public class RemnantFinderTests
     [Fact]
     public void DensePack_FindsGapAtTop()
     {
-        // Reproduce real plate: 120x60, 68 parts of SULLYS-004.
+        // Reproduce a real plate: 120x60 with 68 copies of one production part.
         // Main grid tops out at y=53.14 (obstacle). Two rotated parts on the
         // right extend to y=58.49 but only at x > 106. The gap at x < 106
         // from y=53.14 to y=59.8 is ~106 x 6.66 — should be found.
diff --git a/OpenNest.Tests/Geometry/GeometrySimplifierTests.cs b/OpenNest.Tests/Geometry/GeometrySimplifierTests.cs
index 4caac48..5c45510 100644
--- a/OpenNest.Tests/Geometry/GeometrySimplifierTests.cs
+++ b/OpenNest.Tests/Geometry/GeometrySimplifierTests.cs
@@ -1,4 +1,3 @@
-using System.IO;
 using System.Linq;
 using OpenNest.Geometry;
 using OpenNest.IO;
@@ -386,12 +385,15 @@ public class GeometrySimplifierTests
         return System.Math.Acos(dot) * 180.0 / System.Math.PI;
     }
 
-    [Fact]
-    public void Apply_DynaPanDxf_NoGapsAfterSimplification()
+    /// <summary>
+    /// Optional real-drawing check. The DXF stays outside the repository; set
+    /// "SimplifierGapDxfPath" in OpenNest.Tests/test-config.json to run it.
+    /// </summary>
+    [SkippableFact]
+    public void Apply_RealDxf_NoGapsAfterSimplification()
     {
-        var path = @"C:\Users\aisaacs\Desktop\Sullys Q29 DXFs\SULLYS-031 Dyna Pan.dxf";
-        if (!File.Exists(path))
-            return; // skip if file not available
+        var path = TestConfig.GetExistingPath("SimplifierGapDxfPath");
+        Skip.If(path == null, "SimplifierGapDxfPath not configured in test-config.json or file not found");
 
         var result = Dxf.Import(path);
         var shapes = ShapeBuilder.GetShapes(result.Entities);