diff --git a/src/xchembku_api/crystal_plate_objects/constants.py b/src/xchembku_api/crystal_plate_objects/constants.py
index 89abb43..8616207 100644
--- a/src/xchembku_api/crystal_plate_objects/constants.py
+++ b/src/xchembku_api/crystal_plate_objects/constants.py
@@ -6,9 +6,11 @@ class ThingTypes:
 
 # Names that appear in the Formulatrix database, and how they map to our class types.
 TREENODE_NAMES_TO_THING_TYPES = {
-    "SWISSci_2drop": ThingTypes.SWISS2,
     "SWISSci_3Drop": ThingTypes.SWISS3,
     "SWISSci_3drop": ThingTypes.SWISS3,
-    "Mitegen_insitu1": ThingTypes.MITEGEN,
-    "MiTInSitu": ThingTypes.MITEGEN,
+    # When adding these plate types, need to add corresponding entries to factory in crystal_plate_objects.py.
+    # TODO: Add 2drop and mitegen plate types.
+    # "SWISSci_2drop": ThingTypes.SWISS2,
+    # "Mitegen_insitu1": ThingTypes.MITEGEN,
+    # "MiTInSitu": ThingTypes.MITEGEN,
 }
diff --git a/src/xchembku_lib/crystal_plate_objects/swiss3.py b/src/xchembku_lib/crystal_plate_objects/swiss3.py
index 7a7344b..56dfe72 100644
--- a/src/xchembku_lib/crystal_plate_objects/swiss3.py
+++ b/src/xchembku_lib/crystal_plate_objects/swiss3.py
@@ -1,7 +1,5 @@
 import logging
-from typing import Dict, Tuple
-
-from dls_utilpack.callsign import callsign
+from typing import Tuple
 
 # Base class for generic things.
 from dls_utilpack.thing import Thing
diff --git a/src/xchembku_lib/datafaces/direct_crystal_wells.py b/src/xchembku_lib/datafaces/direct_crystal_wells.py
index 3bdf117..147e01c 100644
--- a/src/xchembku_lib/datafaces/direct_crystal_wells.py
+++ b/src/xchembku_lib/datafaces/direct_crystal_wells.py
@@ -3,7 +3,6 @@
 from typing import Any, Dict, List
 
 from dls_normsql.constants import CommonFieldnames
-from dls_utilpack.describe import describe
 
 from xchembku_api.models.crystal_well_filter_model import CrystalWellFilterModel
 from xchembku_api.models.crystal_well_model import CrystalWellModel