Index: siege_armor.json
===================================================================
--- siege_armor.json
+++ siege_armor.json
@@ -1,7 +1,7 @@
 {
 	"genericName": "Armor plating",
 	"description": "Increased armor on siege engines.",
-	"cost": { "food": 0, "wood": 500, "stone": 0, "metal": 250 },
+	"cost": { "food": 0, "wood": 300, "stone": 0, "metal": 300 },
 	"requirements": { "all": [{ "tech": "phase_city" }, { "notciv": "maur" }] },
 	"requirementsTooltip": "Unlocked in City Phase.",
 	"icon": "armor_plates_gold.png",
Index: siege_attack.json
===================================================================
--- siege_attack.json
+++ siege_attack.json
@@ -1,7 +1,7 @@
 {
 	"genericName": "Advanced Siege",
 	"description": "Advanced technologies improve siege efficiency.",
-	"cost": { "food": 0, "wood": 1000, "stone": 0, "metal": 500 },
+	"cost": { "food": 0, "wood": 800, "stone": 0, "metal": 400 },
 	"requirements": { "all": [{ "tech": "phase_city" }, { "notciv": "maur" }] },
 	"requirementsTooltip": "Unlocked in City Phase.",
 	"icon": "siege_ram.png",
Index: siege_bolt_accuracy.json
===================================================================
--- siege_bolt_accuracy.json
+++ siege_bolt_accuracy.json
@@ -16,7 +16,7 @@
 	"requirementsTooltip": "Unlocked in City Phase.",
 	"icon": "accuracy_bolt.png",
 	"researchTime": 40,
-	"tooltip": "Bolt Shooters −20% ranged attack spread.",
+	"tooltip": "Bolt Shooters −20% spread.",
 	"modifications": [
 		{ "value": "Attack/Ranged/Spread", "multiply": 0.8 }
 	],
Index: siege_cost_metal.json
===================================================================
--- siege_cost_metal.json
+++ siege_cost_metal.json
@@ -1,14 +1,14 @@
 {
 	"genericName": "Metalworker",
 	"description": "Siege engines require less metal.",
-	"cost": { "food": 500, "wood": 500, "stone": 250, "metal": 0 },
+	"cost": { "food": 200, "wood": 0, "stone": 0, "metal": 400 },
 	"requirements": { "all": [{ "tech": "phase_city" }, { "notciv": "maur" }] },
 	"requirementsTooltip": "Unlocked in City Phase.",
 	"icon": "metalworker.png",
 	"researchTime": 40,
-	"tooltip": "Siege Engines −20% metal cost.",
+	"tooltip": "Siege Engines −25% metal cost.",
 	"modifications": [
-		{ "value": "Cost/Resources/metal", "multiply": 0.8 }
+		{ "value": "Cost/Resources/metal", "multiply": 0.75 }
 	],
 	"affects": ["Siege"],
 	"soundComplete": "interface/alarm/alarm_upgradearmory.xml"
Index: siege_cost_wood.json
===================================================================
--- siege_cost_wood.json
+++ siege_cost_wood.json
@@ -1,14 +1,14 @@
 {
 	"genericName": "Artillery Instructors",
 	"description": "Siege engines require less wood.",
-	"cost": { "food": 500, "wood": 0, "stone": 250, "metal": 500 },
+	"cost": { "food": 200, "wood": 400, "stone": 0, "metal": 0 },
 	"requirements": { "all": [{ "tech": "phase_city" }, { "notciv": "maur" }] },
 	"requirementsTooltip": "Unlocked in City Phase.",
 	"icon": "anvil.png",
 	"researchTime": 40,
-	"tooltip": "Siege Engines −20% wood cost.",
+	"tooltip": "Siege Engines −25% wood cost.",
 	"modifications": [
-		{ "value": "Cost/Resources/wood", "multiply": 0.8 }
+		{ "value": "Cost/Resources/wood", "multiply": 0.75 }
 	],
 	"affects": ["Siege"],
 	"soundComplete": "interface/alarm/alarm_upgradearmory.xml"