diff --git a/components/pid/temp_controller.py b/components/pid/temp_controller.py
index 6474359..9cde7f4 100644
--- a/components/pid/temp_controller.py
+++ b/components/pid/temp_controller.py
@@ -16,10 +16,7 @@ class TempController(TempControllerBase):
 		# Compensate for max heat rate to reduce overshoot
 		hold_scale = 1.0/self.heatrate_soll_set if self.heatrate_soll_set > 0 else 1.0
 
-		self.heatrate_soll = self.heatrate_soll_set * self.pid_hold.get_y()
 		theta_err = self.theta_soll_set - self.theta_ist
-		heatrate_err = self.heatrate_soll - self.heatrate_ist
-
 		diff = self.theta_soll_set - self.theta_ist
 		self.process_fsm(diff)
-		self.process_pid(theta_err, heatrate_err, hold_scale)
+		self.process_pid(theta_err, hold_scale)
diff --git a/components/pid/temp_controller_base.py b/components/pid/temp_controller_base.py
index 20bbf20..f58d68d 100644
--- a/components/pid/temp_controller_base.py
+++ b/components/pid/temp_controller_base.py
@@ -130,8 +130,14 @@ class TempControllerBase(TempControllerFsm, APid):
     def get_heatrate_soll_set(self):
         return self.heatrate_soll_set
 
-    def process_pid(self, theta_err, heatrate_err, hold_scale=1.0):
+    def process_pid(self, theta_err, hold_scale=1.0):
         self.pid_hold.process(theta_err, -self.theta_ist, hold_scale)
+        # Compute heatrate_soll HERE, after pid_hold ticks, so it uses
+        # this tick's output rather than last tick's — eliminates the
+        # one-tick cascade delay that caused p_set to dip near zero on
+        # the first tick of a new ramp (HOLD→HEAT transition).
+        self.heatrate_soll = self.heatrate_soll_set * self.pid_hold.get_y()
+        heatrate_err = self.heatrate_soll - self.heatrate_ist
 
         # Only the PID actually driving y is advanced - otherwise the
         # inactive one (e.g. pid_heat while COOL has pid_cool driving)
diff --git a/components/pid/temp_controller_fsm.py b/components/pid/temp_controller_fsm.py
index 08b386f..f641d43 100644
--- a/components/pid/temp_controller_fsm.py
+++ b/components/pid/temp_controller_fsm.py
@@ -96,7 +96,9 @@ class TempControllerFsm:
         elif self.state == States.HOLD:
             if diff >= self.thresholds['HoldHeat']:
                 state_next = States.HEAT
-                self.pid_heat.reset()
+                # No pid_heat.reset() here — bumpless transfer: carry the
+                # hold-phase integral into the new ramp so power doesn't
+                # drop to near-zero and crawl back up from scratch.
             elif diff <= -self.thresholds['HoldCool']:
                 state_next = States.COOL
                 self.pid_cool.reset()
diff --git a/components/pid/temp_controller_smith.py b/components/pid/temp_controller_smith.py
index bae6e97..3ed2604 100755
--- a/components/pid/temp_controller_smith.py
+++ b/components/pid/temp_controller_smith.py
@@ -64,10 +64,7 @@ class TempController(TempControllerBase):
 		# Compensate for max heat rate to reduce overshoot
 		hold_scale = 1.0/self.heatrate_soll_set if self.heatrate_soll_set > 0 else 1.0
 
-		self.heatrate_soll = self.heatrate_soll_set * self.pid_hold.get_y()
 		theta_err = self.theta_soll_set - self.theta_ist
-		heatrate_err = self.heatrate_soll - self.heatrate_ist
-
 		diff = self.theta_soll_set - self.theta_ist
 		self.process_fsm(diff)
-		self.process_pid(theta_err, heatrate_err, hold_scale)
+		self.process_pid(theta_err, hold_scale)