diff --git a/auxtools.dll b/auxtools.dll
index dcd66786a3..e2d4ac4079 100644
Binary files a/auxtools.dll and b/auxtools.dll differ
diff --git a/auxtools.pdb b/auxtools.pdb
index 4ee2c15401..082a1d9bfd 100644
Binary files a/auxtools.pdb and b/auxtools.pdb differ
diff --git a/code/controllers/subsystem/air.dm b/code/controllers/subsystem/air.dm
index d188f0bf4f..ad500e3a3e 100644
--- a/code/controllers/subsystem/air.dm
+++ b/code/controllers/subsystem/air.dm
@@ -6,7 +6,9 @@ SUBSYSTEM_DEF(air)
 	flags = SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
+	var/cost_copy_from = 0
 	var/cost_turfs = 0
+	var/cost_copy_to = 0
 	var/cost_groups = 0
 	var/cost_highpressure = 0
 	var/cost_hotspots = 0
@@ -44,25 +46,20 @@ SUBSYSTEM_DEF(air)
 
 /datum/controller/subsystem/air/stat_entry(msg)
 	msg += "C:{"
-	msg += "EQ:[round(cost_equalize,1)]|"
+	msg += "CF:[round(cost_copy_from,1)]|"
 	msg += "AT:[round(cost_turfs,1)]|"
-	msg += "EG:[round(cost_groups,1)]|"
+	msg += "CT:[round(cost_copy_to,1)]|"
 	msg += "HP:[round(cost_highpressure,1)]|"
 	msg += "HS:[round(cost_hotspots,1)]|"
 	msg += "SC:[round(cost_superconductivity,1)]|"
 	msg += "PN:[round(cost_pipenets,1)]|"
 	msg += "AM:[round(cost_atmos_machinery,1)]"
 	msg += "} "
-	var/active_turfs_len = get_amt_active_turfs()
-	msg += "AT:[active_turfs_len]|"
-	msg += "EG:[get_amt_excited_groups()]|"
 	msg += "HS:[hotspots.len]|"
 	msg += "PN:[networks.len]|"
 	msg += "HP:[high_pressure_delta.len]|"
-	msg += "AS:[active_super_conductivity.len]|"
 	msg += "GA:[get_amt_gas_mixes()]|"
 	msg += "MG:[get_max_gas_mixes()]|"
-	msg += "AT/MS:[round((cost ? active_turfs_len/cost : 0),0.1)]"
 	return ..()
 
 /datum/controller/subsystem/air/Initialize(timeofday)
@@ -123,11 +120,11 @@ SUBSYSTEM_DEF(air)
 		timer = TICK_USAGE_REAL
 		process_turfs(resumed)
 		cost_turfs = MC_AVERAGE(cost_turfs, TICK_DELTA_TO_MS(TICK_USAGE_REAL - timer))
+		resumed = 0
+		currentpart = SSAIR_HIGHPRESSURE
 		MC_TICK_CHECK
 		if(state != SS_RUNNING)
 			return
-		resumed = 0
-		currentpart = SSAIR_HIGHPRESSURE
 
 	if(currentpart == SSAIR_EXCITEDGROUPS)
 		timer = TICK_USAGE_REAL
diff --git a/code/game/turfs/change_turf.dm b/code/game/turfs/change_turf.dm
index 2a3c1fa37d..6375f29662 100644
--- a/code/game/turfs/change_turf.dm
+++ b/code/game/turfs/change_turf.dm
@@ -148,7 +148,7 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(
 		. = ..()
 		if (!.) // changeturf failed or didn't do anything
 			QDEL_NULL(stashed_air)
-			update_air_ref(TRUE)
+			update_air_ref(planetary_atmos ? 1 : 2)
 			return
 		var/turf/open/newTurf = .
 		newTurf.air.copy_from(stashed_air)
diff --git a/code/game/turfs/space/space.dm b/code/game/turfs/space/space.dm
index 1ddb44734e..db700e6ece 100644
--- a/code/game/turfs/space/space.dm
+++ b/code/game/turfs/space/space.dm
@@ -27,7 +27,7 @@
 /turf/open/space/Initialize()
 	icon_state = SPACE_ICON_STATE
 	air = space_gas
-	update_air_ref(FALSE)
+	update_air_ref(0)
 	vis_contents.Cut() //removes inherited overlays
 	visibilityChanged()
 
diff --git a/code/modules/atmospherics/environmental/LINDA_turf_tile.dm b/code/modules/atmospherics/environmental/LINDA_turf_tile.dm
index 2c1baa080a..d1f16f1927 100644
--- a/code/modules/atmospherics/environmental/LINDA_turf_tile.dm
+++ b/code/modules/atmospherics/environmental/LINDA_turf_tile.dm
@@ -38,7 +38,7 @@
 	if(!blocks_air)
 		air = new(2500,src)
 		air.copy_from_turf(src)
-		update_air_ref(!planetary_atmos)
+		update_air_ref(planetary_atmos ? 1 : 2)
 	. = ..()
 
 /turf/open/Destroy()
@@ -121,7 +121,7 @@
 		if (nonoverlaying_gases[id])
 			continue
 		var/gas_overlay = GLOB.meta_gas_overlays[id]
-		if(gas_overlay && air.get_moles(id) > GLOB.meta_gas_visibility[META_GAS_MOLES_VISIBLE])
+		if(gas_overlay && air.get_moles(id) > GLOB.meta_gas_visibility[id])
 			new_overlay_types += gas_overlay[min(FACTOR_GAS_VISIBLE_MAX, CEILING(air.get_moles(id) / MOLES_GAS_VISIBLE_STEP, 1))]
 
 	if (atmos_overlay_types)
diff --git a/code/modules/atmospherics/gasmixtures/gas_mixture.dm b/code/modules/atmospherics/gasmixtures/gas_mixture.dm
index 17b6b867bb..6aeaae8f4e 100644
--- a/code/modules/atmospherics/gasmixtures/gas_mixture.dm
+++ b/code/modules/atmospherics/gasmixtures/gas_mixture.dm
@@ -112,10 +112,9 @@ GLOBAL_LIST_INIT(auxtools_atmos_initialized,FALSE)
 		message_admins("[key_name(usr)] modified gas mixture [REF(src)]: Changed volume to [volume].")
 		set_volume(volume)
 
-/*
 /datum/gas_mixture/Del()
 	__gasmixture_unregister()
-	. = ..()*/
+	. = ..()
 
 /datum/gas_mixture/proc/__gasmixture_unregister()
 /datum/gas_mixture/proc/__gasmixture_register()