diff --git a/BENCHMARKS.md b/BENCHMARKS.md
index c686749..6f83cc8 100644
--- a/BENCHMARKS.md
+++ b/BENCHMARKS.md
@@ -270,3 +270,13 @@ All 8 fixtures captured at `trellis2-bench/parity_fixtures/` (cond_512/
 1024, ss_coords, shape_slat, shape_dec, tex_slat, tex_voxels, mesh_final;
 seed 42, 1024-cascade). Hook env needed: PYTORCH_ENABLE_MPS_FALLBACK=1
 ATTN_BACKEND=sdpa SPARSE_ATTN_BACKEND=sdpa SPARSE_CONV_BACKEND=flex_gemm.
+
+## 2026-07-19 — KDTree bake control: post-mortem (confirmatory run, superseded)
+
+The TRELLIS2_FORCE_KDTREE control finally finished: **bake 21,063s (5.85h)**
+and the exported GLB is GARBAGE geometry (mangled 395K-tri blob) — the
+fork's KDTree export path has its own vertex-mapping bug on top of being
+unusably slow (per-triangle Python rasterizer loop). Verdict unchanged —
+the attrs-projection had already convicted the Metal texel-sampling — but
+this rules out "just use the Python baker" as shipped: it needs the
+fast-rasterizer rewrite + export fix (in progress as fast_bake_test.py).