diff --git a/y2020/control_loops/superstructure/superstructure.cc b/y2020/control_loops/superstructure/superstructure.cc
index b9ba172..d16c692 100644
--- a/y2020/control_loops/superstructure/superstructure.cc
+++ b/y2020/control_loops/superstructure/superstructure.cc
@@ -64,24 +64,34 @@
 
   climber_.Iterate(unsafe_goal, output != nullptr ? &(output_struct) : nullptr);
 
+  const AbsoluteEncoderProfiledJointStatus *const hood_status =
+      GetMutableTemporaryPointer(*status->fbb(), hood_status_offset);
+
   const PotAndAbsoluteEncoderProfiledJointStatus *const turret_status =
       GetMutableTemporaryPointer(*status->fbb(), turret_status_offset);
 
   if (output != nullptr) {
     // Friction is a pain and putting a really high burden on the integrator.
-    double velocity_sign = turret_status->velocity() * kTurretFrictionGain;
+    const double turret_velocity_sign = turret_status->velocity() * kTurretFrictionGain;
     output_struct.turret_voltage +=
-        std::clamp(velocity_sign, -kTurretFrictionVoltageLimit,
+        std::clamp(turret_velocity_sign, -kTurretFrictionVoltageLimit,
                    kTurretFrictionVoltageLimit);
+
+    // Friction is a pain and putting a really high burden on the integrator.
+    const double hood_velocity_sign = hood_status->velocity() * kHoodFrictionGain;
+    output_struct.hood_voltage +=
+        std::clamp(hood_velocity_sign, -kHoodFrictionVoltageLimit,
+                   kHoodFrictionVoltageLimit);
+
+    // And dither the output.
+    time_ += 0.00505;
+    output_struct.hood_voltage += 1.3 * std::sin(time_ * 2.0 * M_PI * 30.0);
   }
 
   bool zeroed;
   bool estopped;
 
   {
-    const AbsoluteEncoderProfiledJointStatus *const hood_status =
-        GetMutableTemporaryPointer(*status->fbb(), hood_status_offset);
-
     const AbsoluteEncoderProfiledJointStatus *const intake_status =
         GetMutableTemporaryPointer(*status->fbb(), intake_status_offset);
 
diff --git a/y2020/control_loops/superstructure/superstructure.h b/y2020/control_loops/superstructure/superstructure.h
index d5f4235..8f7cd8c 100644
--- a/y2020/control_loops/superstructure/superstructure.h
+++ b/y2020/control_loops/superstructure/superstructure.h
@@ -26,6 +26,9 @@
   static constexpr double kTurretFrictionGain = 10.0;
   static constexpr double kTurretFrictionVoltageLimit = 1.5;
 
+  static constexpr double kHoodFrictionGain = 40.0;
+  static constexpr double kHoodFrictionVoltageLimit = 1.5;
+
   using PotAndAbsoluteEncoderSubsystem =
       ::frc971::control_loops::StaticZeroingSingleDOFProfiledSubsystem<
           ::frc971::zeroing::PotAndAbsoluteEncoderZeroingEstimator,
@@ -52,6 +55,9 @@
   shooter::Shooter shooter_;
 
   Climber climber_;
+
+  double time_ = 0.0;
+
   DISALLOW_COPY_AND_ASSIGN(Superstructure);
 };
 
diff --git a/y2020/control_loops/superstructure/superstructure_lib_test.cc b/y2020/control_loops/superstructure/superstructure_lib_test.cc
index f74b111..5932d2d 100644
--- a/y2020/control_loops/superstructure/superstructure_lib_test.cc
+++ b/y2020/control_loops/superstructure/superstructure_lib_test.cc
@@ -235,14 +235,21 @@
     EXPECT_NEAR(superstructure_output_fetcher_->turret_voltage(), 0.0,
                 voltage_check_turret);
 
+    // Invert the friction model.
+    const double hood_velocity_sign =
+        hood_plant_->X(1) * Superstructure::kHoodFrictionGain;
     ::Eigen::Matrix<double, 1, 1> hood_U;
     hood_U << superstructure_output_fetcher_->hood_voltage() +
-                  hood_plant_->voltage_offset();
+                  hood_plant_->voltage_offset() -
+                  std::clamp(hood_velocity_sign,
+                             -Superstructure::kHoodFrictionVoltageLimit,
+                             Superstructure::kHoodFrictionVoltageLimit);
 
     ::Eigen::Matrix<double, 1, 1> intake_U;
     intake_U << superstructure_output_fetcher_->intake_joint_voltage() +
                     intake_plant_->voltage_offset();
 
+    // Invert the friction model.
     const double turret_velocity_sign =
         turret_plant_->X(1) * Superstructure::kTurretFrictionGain;
     ::Eigen::Matrix<double, 1, 1> turret_U;
@@ -672,7 +679,8 @@
     ASSERT_TRUE(builder.Send(goal_builder.Finish()));
   }
   superstructure_plant_.set_peak_hood_velocity(23.0);
-  superstructure_plant_.set_peak_hood_acceleration(0.2);
+  // 30 hz sin wave on the hood causes acceleration to be ignored.
+  superstructure_plant_.set_peak_hood_acceleration(5.5);
 
   superstructure_plant_.set_peak_intake_velocity(23.0);
   superstructure_plant_.set_peak_intake_acceleration(0.2);