diff --git a/ModularBot_garage/src/ModularBot.nim b/ModularBot_garage/src/ModularBot.nim
index a8ba324..8c61453 100644
--- a/ModularBot_garage/src/ModularBot.nim
+++ b/ModularBot_garage/src/ModularBot.nim
@@ -137,6 +137,7 @@ type
     prevGun:      int
     prevRadar:    int
     prevTarget:   int
+    cfgDirty:     bool  ## gun/target/radar changed this tick; emit one config line at tick end
     roundNumber:  int
     realShotsFired: int
     realHits:     int
@@ -205,19 +206,25 @@ proc resolveOwnBullet(bot: ModularBot, bulletId: int): int =
   if result >= 0:
     bot.bulletGun.del(bulletId)
 
-proc printConfig(bot: ModularBot, changed: string = "") =
-  let gunName   = GunNames[bot.currentGun]
+proc printConfig(bot: ModularBot, forceAll: bool = false) =
+  ## One line describing the config in use for the tick being reported. Only the
+  ## fields that changed since the previous line are highlighted green. The gun
+  ## field is omitted until a gun has actually been selected this round, so a
+  ## round-start line never claims a gun that was not chosen.
+  let rst = CLR_RST
+  let gc = if bot.currentGun      != bot.prevGun      or forceAll: CLR_CHANGE else: ""
+  let rc = if bot.radarMode       != bot.prevRadar    or forceAll: CLR_CHANGE else: ""
+  let tc = if bot.currentTargetId != bot.prevTarget   or forceAll: CLR_CHANGE else: ""
   let radarName = if bot.radarMode == 0: "radar_lock" else: "melee_scan"
   let moveName  = if bot.isRamming: "rammer" else: "tfil"
-  let gc = if bot.currentGun    != bot.prevGun    or changed == "all": CLR_CHANGE else: ""
-  let rc = if bot.radarMode     != bot.prevRadar  or changed == "all": CLR_CHANGE else: ""
-  let tc = if bot.currentTargetId != bot.prevTarget or changed == "all": CLR_CHANGE else: ""
-  let rst = CLR_RST
-  echo "[config] " & gc & "gun=" & gunName & (if gc != "": rst else: "") &
-       " | move=" & moveName &
-       " | " & rc & "radar=" & radarName & (if rc != "": rst else: "") &
-       " | enemies=" & $bot.enemyTracker.allAlive().len &
-       " target=" & tc & "#" & $bot.currentTargetId & (if tc != "": rst else: "")
+  var line = "[config] "
+  if bot.currentGun >= 0 and bot.currentGun < GunNames.len:
+    line &= gc & "gun=" & GunNames[bot.currentGun] & (if gc != "": rst else: "") & " | "
+  line &= "move=" & moveName &
+          " | " & rc & "radar=" & radarName & (if rc != "": rst else: "") &
+          " | enemies=" & $bot.enemyTracker.allAlive().len &
+          " target=" & tc & "#" & $bot.currentTargetId & (if tc != "": rst else: "")
+  echo line
   bot.prevGun    = bot.currentGun
   bot.prevRadar  = bot.radarMode
   bot.prevTarget = bot.currentTargetId
@@ -448,7 +455,8 @@ method onRoundStarted*(bot: ModularBot, e: RoundStartedEvent) =
   # ponytail: default to melee until confirmed 1v1 via scans, avoids stale enemyCount issue
   bot.radarMode   = 1  # Start in melee_scan; will switch to radar_lock (0) if tracker confirms 1v1
   bot.moveTracker.resetRound(getX(), getY(), getDirection(), getSpeed())
-  bot.currentGun = 0
+  # currentGun stays -1 ("no gun chosen yet") until run() picks one; printConfig
+  # omits the gun field while it is negative.
   # Apply radar colors for initial mode
   if bot.radarMode == 0:
     setRadarColor("#004444")
@@ -456,7 +464,8 @@ method onRoundStarted*(bot: ModularBot, e: RoundStartedEvent) =
   else:
     setRadarColor("#443300")
     setScanColor("#4D3D0D")
-  bot.printConfig("all")
+  bot.cfgDirty = false
+  bot.printConfig(forceAll = true)
   # tracker fitness persists across rounds (rolling window carries over)
 
 method onBotDeath*(bot: ModularBot, e: BotDeathEvent) =
@@ -520,7 +529,7 @@ method run*(bot: ModularBot) =
       if candidateId != bot.currentTargetId:
         bot.currentTargetId = candidateId
         bot.targetSwitchTick = bot.tick
-        bot.printConfig("target")
+        bot.cfgDirty = true  # emit at tick end, after gun selection
     if bot.currentTargetId >= 0:
       bot.lastKnownTargetId = bot.currentTargetId
 
@@ -593,7 +602,7 @@ method run*(bot: ModularBot) =
       else:
         setRadarColor("#443300")
         setScanColor("#4D3D0D")
-      bot.printConfig("radar")
+      bot.cfgDirty = true  # emit at tick end, after gun selection
 
     let radarRate = if bot.radarMode == 0:
       bot.radar.computeScan(bot.lastState)
@@ -694,6 +703,7 @@ method run*(bot: ModularBot) =
       bot.gunSelectionCount[selectedGun] += 1
       if selectedGun != bot.currentGun:
         bot.currentGun = selectedGun
+        bot.cfgDirty = true  # gun switch: emit the config line at tick end
         case selectedGun
         of 0: setTurretColor("#FF3333"); setBulletColor("#FF6666")
         of 1: setTurretColor("#3366FF"); setBulletColor("#6699FF")
@@ -754,6 +764,12 @@ method run*(bot: ModularBot) =
 
       setGunTurnRate(normDelta)
 
+    # Emit exactly one config line per tick, at the END of the tick, so the gun
+    # field reflects the selection made above rather than the previous tick's.
+    if bot.cfgDirty:
+      bot.printConfig()
+      bot.cfgDirty = false
+
 proc seedSelectorRng() =
   ## Seed the process-global RNG exactly once at bot startup so the gun
   ## selector's "random" tie-break (`chooseFromFit` -> rand) actually varies