diff --git a/notebooks/single_baseline_postprocessing_and_pspec.ipynb b/notebooks/single_baseline_postprocessing_and_pspec.ipynb
index 3223fc1..5951790 100644
--- a/notebooks/single_baseline_postprocessing_and_pspec.ipynb
+++ b/notebooks/single_baseline_postprocessing_and_pspec.ipynb
@@ -870,10 +870,10 @@
     "            flags[antpair + ('pI',)] = flags[antpair + ('ee',)] | flags[antpair + ('nn',)]\n",
     "            flags[antpair + ('pQ',)] = flags[antpair + ('ee',)] | flags[antpair + ('nn',)]\n",
     "\n",
-    "    # nsamples are summed\n",
+    "    # nsamples are combined to produce the correct variance for pI and pQ. \n",
+    "    # In the limit where the two pols have the same nsamples, it's just the sum.\n",
     "    if nsamples is not None:\n",
     "        for antpair in nsamples.antpairs():\n",
-    "            # This produces the correct variance for pI and pQ. In the limit where the two pols have the same nsamples, it's just the sum\n",
     "            nsamples[antpair + ('pI',)] = 4 * (nsamples[antpair + ('ee',)]**-1 + nsamples[antpair + ('nn',)]**-1)**-1\n",
     "            nsamples[antpair + ('pQ',)] = 4 * (nsamples[antpair + ('ee',)]**-1 + nsamples[antpair + ('nn',)]**-1)**-1"
    ]