diff --git a/opendbc/car/ford/radar_interface.py b/opendbc/car/ford/radar_interface.py
index b24d1f949c..56aecfe7be 100644
--- a/opendbc/car/ford/radar_interface.py
+++ b/opendbc/car/ford/radar_interface.py
@@ -78,6 +78,7 @@ def __init__(self, CP):
 
     self.frame = 0
 
+    # TODO: 2.5 good enough?
     self.dbscan = DBSCAN(eps=5, min_samples=1)
 
     self.fig, self.ax = plt.subplots()
@@ -263,11 +264,13 @@ def _update_delphi_mrr(self):
       print('working on cluster', (dRel, yRel, vRel))
 
       closest_previous_cluster = None
-      closest_euclidean_dist = 999999999
+      closest_euclidean_dist = None
       print('searching! ...')
       for idx, c in enumerate(self.clusters):
-        # if c.cluster_id in taken_clusters:
-        #   continue
+        # TODO: need to re-enable this
+        # TODO: some clusters might not match optimally with this, but maybe rare enough?
+        if c.cluster_id in taken_clusters:
+          continue
 
         # if this new cluster is close to any previous ones, use its previous cluster id with the new points and mark the old cluster as used
         print('comparing with prev cluster', (c.dRel, c.yRel, c.vRel))
@@ -315,7 +318,7 @@ def _update_delphi_mrr(self):
     # print('track_id', self.track_id)
     # print('cluster_id', self.cluster_id)
 
-    if PLOT := True:
+    if PLOT := False:
       self.ax.clear()
 
       colors = [cmap(c.cluster_id % 20) for c in self.clusters]
@@ -332,7 +335,7 @@ def _update_delphi_mrr(self):
       self.ax.legend()
       self.ax.set_xlim(0, 180)
       self.ax.set_ylim(-30, 30)
-      plt.pause(1/2)
+      plt.pause(1/100)
 
     self.pts = {}
     for i, cluster in enumerate(self.clusters):