diff --git a/main.py b/main.py
index 6376fd2..231203a 100644
--- a/main.py
+++ b/main.py
@@ -499,8 +499,6 @@ def load_ref_data(x2_shot: str, data_path: str, data={}) -> dict:
         "shock-speed": {} # Note all in us
     }
 
-    data[x2_shot]["time"]["x2_uncert"] = max(UNCERTS["time"]["x2-daq"], data[x2_shot]["time"]["x2-dt"])
-
     # === Process the data ===
     # Generate X2 time arrays
     time_data = x2_channels[0]
@@ -533,6 +531,8 @@ def load_ref_data(x2_shot: str, data_path: str, data={}) -> dict:
         "x2-dt": x2_time_dt
     }
 
+    data[x2_shot]["time"]["x2_uncert"] = max(UNCERTS["time"]["x2-daq"], data[x2_shot]["time"]["x2-dt"])
+
 
     # Find Shock Times
     # X2 - Canning Edge