diff --git a/prediction/algorithms/gear_parent_episode.py b/prediction/algorithms/gear_parent_episode.py
index 09463ba..333d982 100644
--- a/prediction/algorithms/gear_parent_episode.py
+++ b/prediction/algorithms/gear_parent_episode.py
@@ -23,10 +23,10 @@ _LABEL_PRIOR_WINDOW_DAYS = 30
 _CONTINUITY_SCORE_THRESHOLD = 0.45
 _MERGE_SCORE_THRESHOLD = 0.35
 _CENTER_DISTANCE_THRESHOLD_NM = 12.0
-_EPISODE_PRIOR_MAX = 0.10
-_LINEAGE_PRIOR_MAX = 0.05
-_LABEL_PRIOR_MAX = 0.10
-_TOTAL_PRIOR_CAP = 0.20
+_EPISODE_PRIOR_MAX = 0.05
+_LINEAGE_PRIOR_MAX = 0.03
+_LABEL_PRIOR_MAX = 0.07
+_TOTAL_PRIOR_CAP = 0.10
 
 
 def _clamp(value: float, floor: float = 0.0, ceil: float = 1.0) -> float:
diff --git a/prediction/algorithms/gear_parent_inference.py b/prediction/algorithms/gear_parent_inference.py
index e7acf92..14eda43 100644
--- a/prediction/algorithms/gear_parent_inference.py
+++ b/prediction/algorithms/gear_parent_inference.py
@@ -51,8 +51,8 @@ _MIN_AUTO_PROMOTION_STABLE_CYCLES = 3
 _MIN_AUTO_PROMOTION_SCORE = 0.72
 _MIN_AUTO_PROMOTION_MARGIN = 0.15
 _MIN_REVIEW_REQUIRED_SCORE = 0.60
-_MIN_PREFIX_BONUS_SCORE = 0.30
-_CHINA_MMSI_PREFIX_BONUS = 0.15
+_MIN_PREFIX_BONUS_SCORE = 0.50
+_CHINA_MMSI_PREFIX_BONUS = 0.05
 _CHINA_MMSI_PREFIXES = ('412', '413')
 _TRACK_SUPPORT_POINT_TARGET = 12
 _TRACK_SUPPORT_SPAN_TARGET_MINUTES = 90.0