diff --git a/BENCHMARKS.md b/BENCHMARKS.md
index c5848d2..3e62cda 100644
--- a/BENCHMARKS.md
+++ b/BENCHMARKS.md
@@ -236,3 +236,10 @@ anatomy bench image, defaults (50 steps, octree 256): shape 146s + tex 101s
 + T1 UNet compile); shape delta noise-level. Caveat: baseline row used a
 different input image; same settings though. Next lever: Target 2
 whole-DiT compile (unblocked by T3).
+
+Addendum — with T2 (whole-DiT compile) included: shape 144s + tex 99s =
+**243s total**. Full mlx-tune vs 260s baseline ≈ **1.07× e2e**. Verdict:
+on M3 Ultra these 2B GEMM-bound models get ~1% from mx.compile fusion;
+the tune's real wins were T4 fused attention (texture stage) + T3
+compile-safety. Branch mlx-tune @ 5a32240; flag HY3D_MLX_COMPILE=1.
+Worth re-benching on M1 Ultra where launch overhead is proportionally larger.