diff --git a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
index 8c35cb47b01121884878ba62e8b0385a6571d312..d664b2c46735ed78dee5ed095c987fa51d36408c 100644
--- a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
+++ b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
@@ -342,7 +342,7 @@
    "source": [
     "parallel_num_procs = min(6, total_sequences)\n",
     "parallel_num_threads = multiprocessing.cpu_count() // parallel_num_procs\n",
-    "print(f\"Running with {parallel_num_procs} processes spawning {parallel_num_threads} threads each\")\n",
+    "print(f\"Will use {parallel_num_procs} processes with {parallel_num_threads} threads each\")\n",
     "\n",
     "def characterize_module(\n",
     "    fast_data_filename: str, channel: int, gain_index: int\n",
@@ -649,18 +649,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Retrieve existing constants for comparison\n",
+    "# Start retrieving existing constants for comparison\n",
     "qm_x_const = [(qm, const) for const in res[qm] for qm in res]\n",
-    "print('Retrieve pre-existing constants for comparison.')\n",
-    "def boom(qm, const):\n",
+    "def retrieve_old_constant(qm, const):\n",
     "    qm_db = qm_dict[qm]\n",
     "    this_karabo_da = qm_db[\"karabo_da\"]\n",
     "    dconst = getattr(iCalibrationDB.Constants.AGIPD, const)()\n",
@@ -690,26 +681,12 @@
     "    return data, timestamp\n",
     "\n",
     "old_retrieval_pool = multiprocessing.Pool()\n",
-    "old_retrieval_res = old_retrieval_pool.starmap_async(boom, qm_x_const)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
+    "old_retrieval_res = old_retrieval_pool.starmap_async(\n",
+    "    retrieve_old_constant, qm_x_const\n",
+    ")\n",
     "old_retrieval_pool.close()"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -912,14 +889,6 @@
     "    old_mdata.setdefault(qm, {})[const] = timestamp"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,