diff --git a/engine/class_modules/sc_demon_hunter.cpp b/engine/class_modules/sc_demon_hunter.cpp
index 12eba694eb0..c9bec69e0e3 100644
--- a/engine/class_modules/sc_demon_hunter.cpp
+++ b/engine/class_modules/sc_demon_hunter.cpp
@@ -1415,9 +1415,11 @@ class demon_hunter_t : public parse_player_effects_t
     int drain_stacks;
     demon_hunter_t* actor;
     double meta_drain_multiplier = 1.0;
+    // Fit against per-tick drain event schedules from logs (matches cumulative drain
+    // timing through end of meta, not just instantaneous rates); see PR #11549.
     double initial_drain         = 15.0;
-    double exp_factor            = 1.455;
-    double exp_power             = 0.075;
+    double exp_factor            = 1.40;
+    double exp_power             = 0.0775;
 
     fury_state_t( demon_hunter_t* a )
       : start_time( timespan_t::min() ), next_drain_event( nullptr ), drain_stacks( 0 ), actor( a )
@@ -12226,14 +12228,14 @@ double demon_hunter_t::fury_state_t::fury_drain_per_second( int stacks ) const
 
   if ( has_reduced_drain )
   {
-    // Guess
-    drain *= 0.15;
+    // Reduced while casting Collapsing Star / channeling Void Ray. Measured ~0.127 from logs.
+    drain *= 0.127;
   }
 
   if ( drain_stacks < 1 )
   {
-    // Slow after meta cast
-    drain = 15;
+    // Slow first second after meta cast. Measured ~10/s from logs.
+    drain = 10;
   }
 
   return drain;