diff --git a/engine/MUNGA/AUDSEQ.cpp b/engine/MUNGA/AUDSEQ.cpp
index 9f83104..f66f4ff 100644
--- a/engine/MUNGA/AUDSEQ.cpp
+++ b/engine/MUNGA/AUDSEQ.cpp
@@ -243,6 +243,7 @@ void
 	audioComponentSocket.Add(audio_component);
 
 	isLooped = is_looped;
+	runProbeCount = 0;			// #99 diag
 	isRunning = False;
 	startTime = AudioTime::Null;
 	audioControlEventIterator = NULL;
@@ -393,7 +394,12 @@ void
 	AudioControlSequence::StartSequence()
 {
 	if (getenv("BT_ATTRBIND_LOG")) { static int s_ss=0; if (s_ss++<40)
-		DEBUG_STREAM << "[seqstart] seq=" << (void*)this << "\n" << std::flush; }
+	{	AudioControlEventIterator probe(&audioControlEventSocket);
+		DEBUG_STREAM << "[seqstart] seq=" << (void*)this
+			<< " events=" << (int)probe.GetSize()
+			<< " looped=" << (int)isLooped
+			<< " tempo=" << (int)tempo
+			<< " divPerBeat=" << (int)divisionsPerBeat << std::endl; } }
 
 	Check(this);
 
@@ -467,6 +473,16 @@ void
 	//
 	// If the sequence is not running, then return
 	//
+	// #99 probe: PER-SEQUENCE throttle.  A single shared counter here hid the
+	// alarm sequence entirely -- the busy sequences ate every slot.
+	if (getenv("BT_ATTRBIND_LOG") && isLooped) { if (runProbeCount < 6)
+	{	++runProbeCount;
+		DEBUG_STREAM << "[seqrun] seq=" << (void *)this
+			<< " isRunning=" << (int)isRunning
+			<< " iter=" << (void *)audioControlEventIterator
+			<< " cur=" << (void *)(audioControlEventIterator ? audioControlEventIterator->GetCurrent() : 0)
+			<< std::endl;
+	} }
 	if (!isRunning)
 		return;
 
@@ -478,6 +494,16 @@ void
 
 	Check(audioControlEventIterator);
 	control_event = audioControlEventIterator->GetCurrent();
+	if (getenv("BT_ATTRBIND_LOG")) { static int s_nr=0;
+		if (control_event != NULL && !IsEventReady(control_event) && (s_nr++ % 500)==0)
+		{
+			AudioTime off(startTime);
+			off += CalculateEventSeconds(control_event);
+			DEBUG_STREAM << "[seqwait] seq=" << (void *)this
+				<< " eventSeconds=" << CalculateEventSeconds(control_event)
+				<< " readyAt-now=" << (Scalar)(off - AudioTime::Now())
+				<< std::endl;
+		} }
 	while (
 		control_event != NULL &&
 		IsEventReady(control_event)
@@ -513,6 +539,11 @@ void
 		// Send the controller to the connected audio component
 		//
 		Check(control_event);
+		if (getenv("BT_ATTRBIND_LOG")) { static int s_se=0; if (s_se++<60)
+			DEBUG_STREAM << "[seqsend] seq=" << (void *)this
+				<< " -> comp=" << (void *)audioComponentSocket.GetCurrent()
+				<< " ctl=" << (int)control_event->audioControlID
+				<< "/" << control_event->audioControlValue << std::endl; }
 		control_event->Send(audioComponentSocket.GetCurrent());
 
 		//
diff --git a/engine/MUNGA/AUDWTHR.cpp b/engine/MUNGA/AUDWTHR.cpp
index 2bf0f62..9deb1eb 100644
--- a/engine/MUNGA/AUDWTHR.cpp
+++ b/engine/MUNGA/AUDWTHR.cpp
@@ -112,6 +112,9 @@ void
 {
 	Check(this);
 	Check(audioComponentSocket.GetCurrent());
+	if (getenv("BT_ATTRBIND_LOG")) { static int s_iw=0; if ((s_iw++ % 400)==0)
+		DEBUG_STREAM << "[idlewatch] #" << s_iw << " comp="
+			<< (void *)audioComponentSocket.GetCurrent() << std::endl; }
 	audioComponentSocket.GetCurrent()->ReceiveControl(
 		IdleAudioControlID,
 		0.0f
diff --git a/game/reconstructed/heat.cpp b/game/reconstructed/heat.cpp
index 2ae7b55..7bf5e0b 100644
--- a/game/reconstructed/heat.cpp
+++ b/game/reconstructed/heat.cpp
@@ -560,6 +560,9 @@ HeatSink::HeatSink(
 			<< " failT=" << failureTemperature
 			<< " conductance=" << thermalConductance
 			<< " thermalMass=" << thermalMass
+			// #99: correlate with [attrbind] -- is the audio watcher actually
+			// bound to THIS object's leak flag?
+			<< " &ReportLeak=" << (void *)&coolantActive
 			<< "\n" << std::flush;
 
 	//
diff --git a/scratchpad/night8/leakaudio.sh b/scratchpad/night8/leakaudio.sh
new file mode 100644
index 0000000..cfea3d3
--- /dev/null
+++ b/scratchpad/night8/leakaudio.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# #99: "alarm is not sounding despite an active leak" (Oracle).
+#
+# The authored design, read from BTL4.RES: per condenser the content binds
+#     Condenser<N>.ReportLeak   x2      (AudioLogicalTrigger: match 1 = on, 0 = off)
+#     Condenser<N>.CondenserState        (AudioStateWatcher)
+# ReportLeak is HeatSink::coolantActive, the leak-active hysteresis flag.
+#
+# Diagnostics: BT_AUDIO_LOG prints [audiostate] skips (the bring-up guard that
+# refuses to bind a watcher to an unbuilt StateIndicator); BT_AUDIO_SPATIAL
+# prints [watchpoll] CHANGE and [matchfire] when a trigger actually fires.
+set -x
+. /c/git/bt411/scratchpad/night6/bench_common.sh
+cd /c/git/bt411/content || exit 1
+taskkill //F //IM btl4.exe > /dev/null 2>&1
+sleep 2
+sed "s/^map=.*/map=grass/; s/^time=.*/time=day/" MP.EGG > LEAK.EGG
+LOG=leakaudio.log
+rm -f "$LOG"
+export BT_SELF_DAMAGE=4 BT_SELF_DAMAGE_ZONE=dz_rarm
+export BT_LAMP_LOG=1 BT_COOL_LOG=1
+export BT_AUDIO_LOG=1 BT_AUDIO_SPATIAL=1 BT_ATTRBIND_LOG=1 BT_MYO_LOG=1
+bt_launch "$LOG" LEAK.EGG 0x03
+sleep 100
+taskkill //F //IM btl4.exe > /dev/null 2>&1
+sleep 2