diff --git a/tests/Aetheria.Shared.Tests/ZzProbe.cs b/tests/Aetheria.Shared.Tests/ZzProbe.cs
new file mode 100644
index 000000000..ebb0fbc56
--- /dev/null
+++ b/tests/Aetheria.Shared.Tests/ZzProbe.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Text;
+using CultMath;
+using Xunit;
+using Xunit.Abstractions;
+namespace Aetheria.Shared.Tests;
+public class ZzProbe
+{
+    readonly ITestOutputHelper _o; public ZzProbe(ITestOutputHelper o) { _o = o; }
+    const float Deg = MathF.PI / 180f;
+    static float3 Col(float a, float b, float c) => new(a, b, c * Deg);
+    [Fact]
+    public void Probe()
+    {
+        var duel = new[] { Col(0, 53.94f, 49.24f), Col(0, 61.19f, -55.86f), Col(29.08f, 0, 166.26f), Col(-21.80f, 0, -124.63f) };
+        foreach (var warmFirst in new[] { false, true })
+        {
+            var sb = new StringBuilder();
+            var al = new ThrustAllocator();
+            if (warmFirst) al.Allocate(duel, new float2(0, 0), 1f, new float[4]);
+            foreach (var t in new[] { 0f, .001f, .002f, .005f, .01f, .1f, .3f, .5f, .7f, .76f, .78f, .8f, 1f })
+            {
+                var th = new float[4]; al.Allocate(duel, new float2(0, 0), t, th);
+                sb.Append($"t={t}: {th[0]:G4} {th[1]:G4} {th[2]:G4} {th[3]:G4}\n");
+            }
+            _o.WriteLine("warm=" + warmFirst + "\n" + sb);
+        }
+        Assert.Fail("PROBE");
+    }
+}