diff --git a/Train.cpp b/Train.cpp
index e3c48a38..585d8fde 100644
--- a/Train.cpp
+++ b/Train.cpp
@@ -1043,10 +1043,11 @@ void TTrain::OnCommand_secondcontrollerset( TTrain *Train, command_data const &C
 
 void TTrain::OnCommand_independentbrakeincrease( TTrain *Train, command_data const &Command ) {
 
-    if( Command.action == GLFW_REPEAT ) {
-
-        if( Train->mvOccupied->LocalBrake != TLocalBrake::ManualBrake ) {
-            Train->mvOccupied->IncLocalBrakeLevel( Global.brake_speed * Command.time_delta * LocalBrakePosNo );
+	if( Command.action != GLFW_RELEASE ) {
+		if( Train->mvOccupied->LocalBrake != TLocalBrake::ManualBrake ) {
+			Train->mvOccupied->IncLocalBrakeLevel(
+			        (Train->ggJointCtrl.SubModel == nullptr) ?
+			        (Global.brake_speed * Command.time_delta * LocalBrakePosNo) : 1);
         }
     }
 }
@@ -1063,13 +1064,15 @@ void TTrain::OnCommand_independentbrakeincreasefast( TTrain *Train, command_data
 
 void TTrain::OnCommand_independentbrakedecrease( TTrain *Train, command_data const &Command ) {
 
-    if( Command.action == GLFW_REPEAT ) {
+	if( Command.action != GLFW_RELEASE ) {
 
         if( ( Train->mvOccupied->LocalBrake != TLocalBrake::ManualBrake )
             // Ra 1014-06: AI potrafi zahamować pomocniczym mimo jego braku - odhamować jakoś trzeba
             // TODO: sort AI out so it doesn't do things it doesn't have equipment for
          || ( Train->mvOccupied->LocalBrakePosA > 0 ) ) {
-            Train->mvOccupied->DecLocalBrakeLevel( Global.brake_speed * Command.time_delta * LocalBrakePosNo );
+			Train->mvOccupied->DecLocalBrakeLevel(
+			            (Train->ggJointCtrl.SubModel == nullptr) ?
+			            (Global.brake_speed * Command.time_delta * LocalBrakePosNo) : 1);
         }
     }
 }
diff --git a/particles.cpp b/particles.cpp
index eb54c725..58505f22 100644
--- a/particles.cpp
+++ b/particles.cpp
@@ -109,14 +109,14 @@ smoke_source::deserialize_mapping( cParser &Input ) {
 void
 smoke_source::initialize() {
 
-    m_particles.reserve(
+	m_max_particles =
         // put a cap on number of particles in a single source. TBD, TODO: make it part of he source configuration?
         std::min(
 	        2000,
             // NOTE: given nature of the smoke we're presuming opacity decreases over time and the particle is killed when it reaches 0
             // this gives us estimate of longest potential lifespan of single particle, and how many particles total can there be at any given time
             // TBD, TODO: explicit lifespan variable as part of the source configuration?
-            static_cast<int>( m_spawnrate / std::abs( m_opacitymodifier.value_change() ) ) ) );
+	        static_cast<int>( m_spawnrate / std::abs( m_opacitymodifier.value_change() ) ) );
 }
 
 void
@@ -154,7 +154,7 @@ smoke_source::update( double const Timedelta, bool const Onlydespawn ) {
             0.f :
             std::min<float>(
                 m_spawncount + ( m_spawnrate * Timedelta ),
-                m_particles.capacity() ) );
+	            m_max_particles ) );
     // update spawned particles
     for( auto particleiterator { std::begin( m_particles ) }; particleiterator != std::end( m_particles ); ++particleiterator ) {
 
@@ -185,7 +185,7 @@ smoke_source::update( double const Timedelta, bool const Onlydespawn ) {
     }
     // spawn pending particles in remaining container slots
     while( ( m_spawncount >= 1.f )
-        && ( m_particles.size() < m_particles.capacity() ) ) {
+	    && ( m_particles.size() < m_max_particles ) ) {
 
         m_spawncount -= 1.f;
         // work with a temporary copy in case initial update renders the particle dead
diff --git a/particles.h b/particles.h
index f7de0630..eae467d8 100644
--- a/particles.h
+++ b/particles.h
@@ -146,6 +146,7 @@ private:
     // current state
     float m_spawncount { 0.f }; // number of particles to spawn during next update
     particle_sequence m_particles; // collection of spawned particles
+	size_t m_max_particles; // maximum number of particles existing
 /*
     smoke_sequence::iterator // helpers, iterators marking currently used part of the particle container
         m_particlehead,