diff --git a/app/Classes/File/Item.php b/app/Classes/File/Item.php
index c12fd1b..641a288 100644
--- a/app/Classes/File/Item.php
+++ b/app/Classes/File/Item.php
@@ -17,6 +17,9 @@ class Item
 {
 	private const LOGKEY = 'I--';
 
+	// For deep debugging
+	protected bool $DEBUG = FALSE;
+
 	protected const IS_PKT			= (1<<1);
 	protected const IS_ARC			= (1<<2);
 	protected const IS_FILE			= (1<<3);
diff --git a/app/Classes/File/Send.php b/app/Classes/File/Send.php
index 506872c..5e2fdd5 100644
--- a/app/Classes/File/Send.php
+++ b/app/Classes/File/Send.php
@@ -273,7 +273,9 @@ final class Send extends Item
 		}
 
 		$this->file_pos += strlen($data);
-		Log::debug(sprintf('%s: - Read [%d] bytes, file pos now [%d]',self::LOGKEY,strlen($data),$this->file_pos));
+
+		if ($this->DEBUG)
+			Log::debug(sprintf('%s: - Read [%d] bytes, file pos now [%d]',self::LOGKEY,strlen($data),$this->file_pos));
 
 		if ($data === FALSE)
 			throw new UnreadableFileEncountered('Error reading file: '.$this->sending->file_name);
diff --git a/app/Classes/Protocol/Zmodem.php b/app/Classes/Protocol/Zmodem.php
index fe51c64..62156c1 100644
--- a/app/Classes/Protocol/Zmodem.php
+++ b/app/Classes/Protocol/Zmodem.php
@@ -1986,7 +1986,8 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
 	 */
 	private function ls_zsenddata(string $data,int $frame): int
 	{
-		Log::debug(sprintf('%s:+ ls_zsenddata [%d] (%d)',self::LOGKEY,strlen($data),$frame));
+		if ($this->DEBUG)
+			Log::debug(sprintf('%s:+ ls_zsenddata [%d] (%d)',self::LOGKEY,strlen($data),$frame));
 
 		if ($this->ls_Protocol&self::LSZ_OPTCRC32) {
 			if ($this->DEBUG)
@@ -2235,7 +2236,9 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
 					/* Ok, position ACK */
 					case self::ZACK:
 						$this->ls_txLastACK = $this->ls_fetchlong($this->ls_rxHdr);
-						Log::debug(sprintf('%s: - ls_zsendfile ZACK',self::LOGKEY),['ls_rxHdr'=>$this->ls_rxHdr,'ls_txLastACK'=>$this->ls_txLastACK,'ls_rxHdr'=>$this->ls_rxHdr]);
+
+						if ($this->DEBUG)
+							Log::debug(sprintf('%s: - ls_zsendfile ZACK',self::LOGKEY),['ls_rxHdr'=>$this->ls_rxHdr,'ls_txLastACK'=>$this->ls_txLastACK,'ls_rxHdr'=>$this->ls_rxHdr]);
 
 						break;
 
diff --git a/app/Classes/Sock/SocketClient.php b/app/Classes/Sock/SocketClient.php
index 6494076..da8ac84 100644
--- a/app/Classes/Sock/SocketClient.php
+++ b/app/Classes/Sock/SocketClient.php
@@ -172,7 +172,9 @@ final class SocketClient {
 				if ($this->DEBUG)
 					Log::debug(sprintf('%s: - Sending [%d]',self::LOGKEY,$restsize));
 				$rc = $this->send(substr($this->tx_buf,$tx_ptr,$restsize),0);
-				Log::debug(sprintf('%s: - Sent [%d] (%s)',self::LOGKEY,$rc,Str::limit($this->tx_buf,15)));
+
+				if ($this->DEBUG)
+					Log::debug(sprintf('%s: - Sent [%d] (%s)',self::LOGKEY,$rc,Str::limit($this->tx_buf,15)));
 
 				if ($rc == $restsize) {
 					$this->tx_buf = '';