diff --git a/Cargo.toml b/Cargo.toml
index 58660584..ebfc2f1a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ daemonize = "^0.2.3"
 serde = "~1.0.8"
 serde_derive = "~1.0.8"
 serde_json = "~1.0.2"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 
 # TODO - once "patch" is available we should be able to clean up the workspace dependencies
 # [patch.crate-io]
diff --git a/api/Cargo.toml b/api/Cargo.toml
index d8c2f401..cd63533c 100644
--- a/api/Cargo.toml
+++ b/api/Cargo.toml
@@ -12,7 +12,7 @@ grin_store = { path = "../store" }
 grin_util = { path = "../util" }
 secp256k1zkp = { git = "https://github.com/mimblewimble/rust-secp256k1-zkp" }
 hyper = "~0.10.6"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 iron = "~0.5.1"
 router = "~0.5.1"
 serde = "~1.0.8"
diff --git a/chain/Cargo.toml b/chain/Cargo.toml
index 59d1ace2..03849f11 100644
--- a/chain/Cargo.toml
+++ b/chain/Cargo.toml
@@ -7,7 +7,7 @@ workspace = ".."
 [dependencies]
 bitflags = "^0.7.0"
 byteorder = "^0.5"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 serde = "~1.0.8"
 serde_derive = "~1.0.8"
 time = "^0.1"
diff --git a/doc/build.md b/doc/build.md
index 63b3f9cd..483616ba 100644
--- a/doc/build.md
+++ b/doc/build.md
@@ -102,12 +102,12 @@ Before running your mining server, a wallet server needs to be set up and listen
 
     node1$ grin wallet -p "password" receive
 
-This will create a wallet server listening on the default port 13415 with the password "password". Next, in another terminal window in the 'node1' directory, run a full mining node with the following command:
+This will create a wallet server listening on the default port 13416 with the password "password". Next, in another terminal window in the 'node1' directory, run a full mining node with the following command:
 
     node1$ grin server -m run
 
 This creates a new .grin database directory in the current directory, and begins mining new blocks (with no transactions, for now). Note this starts two services listening on two default ports, 
-port 13414 for the peer-to-peer (P2P) service which keeps all nodes synchronised, and 13415 for the Rest API service used to verify transactions and post new transactions to the pool (for example). These ports can be configured via command line switches, or via a grin.toml file in the working directory.
+port 13414 for the peer-to-peer (P2P) service which keeps all nodes synchronised, and 13413 for the Rest API service used to verify transactions and post new transactions to the pool (for example). These ports can be configured via command line switches, or via a grin.toml file in the working directory.
 
 Let the mining server find a few blocks, then stop (just ctrl-c) the mining server and the wallet server. You'll notice grin has created a database directory (.grin) in which the blockchain and peer data is stored. There should also be a wallet.dat file in the current directory, which contains a few coinbase mining rewards created each time the server mines a new block.
 
diff --git a/grin/Cargo.toml b/grin/Cargo.toml
index ad8c52a0..1a2eb6fa 100644
--- a/grin/Cargo.toml
+++ b/grin/Cargo.toml
@@ -20,7 +20,7 @@ secp256k1zkp = { git = "https://github.com/mimblewimble/rust-secp256k1-zkp" }
 futures = "^0.1.15"
 futures-cpupool = "^0.1.3"
 hyper = { git = "https://github.com/hyperium/hyper" }
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 time = "^0.1"
 serde = "~1.0.8"
 serde_derive = "~1.0.8"
diff --git a/p2p/Cargo.toml b/p2p/Cargo.toml
index 0a95a8ea..eca81a2a 100644
--- a/p2p/Cargo.toml
+++ b/p2p/Cargo.toml
@@ -8,7 +8,7 @@ workspace = ".."
 bitflags = "^0.7.0"
 byteorder = "^0.5"
 futures = "^0.1.15"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 net2 = "0.2.0"
 rand = "^0.3"
 serde = "~1.0.8"
diff --git a/pow/Cargo.toml b/pow/Cargo.toml
index 20f8f165..e07d6982 100644
--- a/pow/Cargo.toml
+++ b/pow/Cargo.toml
@@ -8,7 +8,7 @@ workspace = ".."
 blake2-rfc = "~0.2.17"
 rand = "^0.3"
 time = "^0.1"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 lazy_static = "~0.2.8"
 serde = "~1.0.8"
 serde_derive = "~1.0.8"
diff --git a/store/Cargo.toml b/store/Cargo.toml
index 30b8e717..a71f2b77 100644
--- a/store/Cargo.toml
+++ b/store/Cargo.toml
@@ -7,7 +7,7 @@ workspace = ".."
 [dependencies]
 byteorder = "^0.5"
 env_logger="^0.3.5"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 libc = "^0.2"
 memmap = { git = "https://github.com/danburkert/memmap-rs" }
 rocksdb = "^0.7.0"
diff --git a/util/Cargo.toml b/util/Cargo.toml
index c863ffee..25d7f3ad 100644
--- a/util/Cargo.toml
+++ b/util/Cargo.toml
@@ -6,7 +6,7 @@ authors = ["Ignotus Peverell <igno.peverell@protonmail.com>",
 workspace = ".."
 
 [dependencies]
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 slog-term = "^2.2.0"
 slog-async = "^2.1.0"
 lazy_static = "~0.2.8"
diff --git a/util/src/logger.rs b/util/src/logger.rs
index f1b5da13..1a38d173 100644
--- a/util/src/logger.rs
+++ b/util/src/logger.rs
@@ -20,7 +20,7 @@ use slog_async;
 
 use types::{LogLevel, LoggingConfig};
 
-fn convert_log_level(in_level:&LogLevel)->Level{
+fn convert_log_level(in_level: &LogLevel) -> Level {
 	match *in_level {
 		LogLevel::Info => Level::Info,
 		LogLevel::Critical => Level::Critical,
@@ -32,10 +32,13 @@ fn convert_log_level(in_level:&LogLevel)->Level{
 }
 
 lazy_static! {
+	/// Flag to observe whether logging was explcitly initialised (don't output otherwise)
+	static ref WAS_INIT: Mutex<bool> = Mutex::new(false);
 	/// Static Logging configuration, should only be set once, before first logging call
 	static ref LOGGING_CONFIG: Mutex<LoggingConfig> = Mutex::new(LoggingConfig::default());
 	/// And a static reference to the logger itself, accessible from all crates
 	pub static ref LOGGER: Logger = {
+		let was_init = WAS_INIT.lock().unwrap().clone();
 		let config = LOGGING_CONFIG.lock().unwrap();
 		let slog_level_stdout = convert_log_level(&config.stdout_log_level);
 		let slog_level_file = convert_log_level(&config.file_log_level);
@@ -46,13 +49,13 @@ lazy_static! {
 		let terminal_drain = LevelFilter::new(terminal_drain, slog_level_stdout).fuse();
 		let mut terminal_drain = slog_async::Async::new(terminal_drain).build().fuse();
 
-		if !config.log_to_stdout {
+		if !config.log_to_stdout || !was_init {
 			terminal_drain = slog_async::Async::new(Discard{}).build().fuse();
 		}
 		
 		let mut file_drain_final = slog_async::Async::new(Discard{}).build().fuse();
 
-		if config.log_to_file {
+		if config.log_to_file && was_init {
 			//File drain
 			let file = OpenOptions::new()
 				.create(true)
@@ -73,15 +76,16 @@ lazy_static! {
 
 		let log = Logger::root(composite_drain, o!());
 		log
-  };
+	};
 }
 
 /// Initialises the logger with the given configuration
 
-pub fn init_logger(config:Option<LoggingConfig>){
+pub fn init_logger(config: Option<LoggingConfig>) {
 	if let Some(c) = config {
-		let mut config_ref=LOGGING_CONFIG.lock().unwrap();
-		*config_ref=c.clone();
+		let mut config_ref = LOGGING_CONFIG.lock().unwrap();
+		*config_ref = c.clone();
+		let mut was_init_ref = WAS_INIT.lock().unwrap();
+		*was_init_ref = true;
 	}
-	
 }
diff --git a/wallet/Cargo.toml b/wallet/Cargo.toml
index 04c84d3b..ec7e289e 100644
--- a/wallet/Cargo.toml
+++ b/wallet/Cargo.toml
@@ -10,7 +10,7 @@ authors = [
 [dependencies]
 
 byteorder = "1"
-slog = "^2.0.12"
+slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_trace"] }
 rand = "^0.3"
 blake2-rfc = "~0.2.17"
 serde = "~1.0.8"