diff --git a/eco/acquisition/scan.py b/eco/acquisition/scan.py
index f1c20e4..ac349a1 100755
--- a/eco/acquisition/scan.py
+++ b/eco/acquisition/scan.py
@@ -158,7 +158,10 @@ class Scan:
             except:
                 print("elog posting failed")
         if self._run_table:
-            self._run_table.append_run(runno, metadata=metadata)
+            try:
+                self._run_table.append_run(runno, metadata=metadata)
+            except:
+                print("WARNING: issue adding data to run table")
 
     def get_filename(self, stepNo, Ndigits=4):
         fina = os.path.join(self.basepath, Path(self.fina).stem)
diff --git a/eco/epics/adjustable.py b/eco/epics/adjustable.py
index ccbd077..7542691 100644
--- a/eco/epics/adjustable.py
+++ b/eco/epics/adjustable.py
@@ -194,7 +194,7 @@ class AdjustablePvString:
         )
 
     def __repr__(self):
-        return self.get_current_value()
+        return str(self.get_current_value())
 
     def __call__(self, string=None):
         if not string is None:
diff --git a/eco/loptics/bernina_laser.py b/eco/loptics/bernina_laser.py
index e86ed62..a77d0d7 100644
--- a/eco/loptics/bernina_laser.py
+++ b/eco/loptics/bernina_laser.py
@@ -55,7 +55,7 @@ class LaserBernina(Assembly):
         
         self._append(
             MotorRecord,
-            self.pvname + "-M521:MOTOR_1",
+            self.pvname + "-M522:MOTOR_1",
             name="delaystage_pump",
             is_setting=True,
         )
diff --git a/~/eco/reference_values/otti_det_rot_offset.json b/~/eco/reference_values/otti_det_rot_offset.json
new file mode 100644
index 0000000..965e974
--- /dev/null
+++ b/~/eco/reference_values/otti_det_rot_offset.json
@@ -0,0 +1,3 @@
+{
+    "value": null
+}
\ No newline at end of file