diff --git a/deep_gemm/mega/__init__.py b/deep_gemm/mega/__init__.py
index e2ff491..bd459d9 100644
--- a/deep_gemm/mega/__init__.py
+++ b/deep_gemm/mega/__init__.py
@@ -286,6 +286,8 @@ def transform_nvfp4_weights_for_mega_moe(
         l1_sf_mn, l1_n, l1_k, (1, 16), num_experts)
     l2_sf_transformed = transform_sf_into_required_layout(
         l2_sf_mn, l2_n, l2_k, (1, 16), num_experts)
+    print(f"[debug-pre-interleave] l1_sf_transformed: shape={tuple(l1_sf_transformed.shape)} strides={l1_sf_transformed.stride()}", flush=True)
+    print(f"[debug-pre-interleave] l2_sf_transformed: shape={tuple(l2_sf_transformed.shape)} strides={l2_sf_transformed.stride()}", flush=True)
     
     # L1: interleave gate/up
     l1_interleaved = _interleave_l1_weights((l1_weights[0], l1_sf_transformed))