diff --git a/swing/src/net/sf/openrocket/gui/configdialog/StageConfig.java b/swing/src/net/sf/openrocket/gui/configdialog/StageConfig.java
index 588c09bb2..4622c76a1 100644
--- a/swing/src/net/sf/openrocket/gui/configdialog/StageConfig.java
+++ b/swing/src/net/sf/openrocket/gui/configdialog/StageConfig.java
@@ -1,17 +1,13 @@
 package net.sf.openrocket.gui.configdialog;
 
 import javax.swing.ComboBoxModel;
-import javax.swing.JCheckBox;
 import javax.swing.JComboBox;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
-import javax.swing.JSeparator;
 import javax.swing.JSpinner;
-import javax.swing.SwingConstants;
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.document.OpenRocketDocument;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.IntegerModel;
@@ -19,7 +15,6 @@ import net.sf.openrocket.gui.components.StyledLabel;
 import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.components.StyledLabel.Style;
 import net.sf.openrocket.l10n.Translator;
-import net.sf.openrocket.rocketcomponent.OutsideComponent;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.rocketcomponent.Stage;
 import net.sf.openrocket.rocketcomponent.StageSeparationConfiguration;
@@ -27,8 +22,8 @@ import net.sf.openrocket.startup.Application;
 import net.sf.openrocket.unit.UnitGroup;
 
 public class StageConfig extends RocketComponentConfig {
+	private static final long serialVersionUID = -944969957186522471L;
 	private static final Translator trans = Application.getTranslator();
-
 	
 	public StageConfig(OpenRocketDocument document, RocketComponent component) {
 		super(document, component);
@@ -40,8 +35,8 @@ public class StageConfig extends RocketComponentConfig {
 					trans.get("tab.Separation.ttip"), 1);
 		}
 	 	
-	 	// all stage instances should qualify here...
-		if( component instanceof OutsideComponent ){
+	 	// only stages which are actually off-centerline will get the dialog here:
+		if( ! component.isCenterline()){
 			tabbedPane.insertTab( trans.get("RocketCompCfg.tab.Parallel"), null, parallelTab( (Stage) component ), trans.get("RocketCompCfg.tab.ParallelComment"), 2);
 		}
 	}
@@ -49,57 +44,40 @@ public class StageConfig extends RocketComponentConfig {
 	private JPanel parallelTab( final Stage stage ){
 		JPanel motherPanel = new JPanel( new MigLayout("fill"));
 	
-		// enable parallel staging
-		motherPanel.add(new JSeparator(SwingConstants.HORIZONTAL), "spanx 3, growx, wrap");	
-		BooleanModel parallelEnabledModel = new BooleanModel( component, "Outside");
-		parallelEnabledModel.setValue( stage.getOutside());
-		JCheckBox parallelEnabled = new JCheckBox( parallelEnabledModel);
-		parallelEnabled.setText(trans.get("Stage.parallel.toggle"));
-		motherPanel.add(parallelEnabled, "wrap");
-
 		// set radial distance
 		JLabel radiusLabel = new JLabel(trans.get("Stage.parallel.radius"));  
 		motherPanel.add( radiusLabel , "align left");
-		parallelEnabledModel.addEnableComponent( radiusLabel, true);
 		DoubleModel radiusModel = new DoubleModel( stage, "RadialOffset", UnitGroup.UNITS_LENGTH, 0);
 		//radiusModel.setCurrentUnit( UnitGroup.UNITS_LENGTH.getUnit("cm"));
 		JSpinner radiusSpinner = new JSpinner( radiusModel.getSpinnerModel());
 		radiusSpinner.setEditor(new SpinnerEditor(radiusSpinner ));
 		motherPanel.add(radiusSpinner , "growx 1, align right");
-		parallelEnabledModel.addEnableComponent( radiusSpinner, true);
 		UnitSelector radiusUnitSelector = new UnitSelector(radiusModel);
 		motherPanel.add(radiusUnitSelector, "growx 1, wrap");
-		parallelEnabledModel.addEnableComponent( radiusUnitSelector , true);
 		
 		// set location angle around the primary stage
 		JLabel angleLabel = new JLabel(trans.get("Stage.parallel.angle"));
 		motherPanel.add( angleLabel, "align left");
-		parallelEnabledModel.addEnableComponent( angleLabel, true);
 		DoubleModel angleModel = new DoubleModel( stage, "AngularOffset", 1.0, UnitGroup.UNITS_ANGLE, 0.0, Math.PI*2);
 		angleModel.setCurrentUnit( UnitGroup.UNITS_ANGLE.getUnit("rad"));
 		JSpinner angleSpinner = new JSpinner(angleModel.getSpinnerModel());
 		angleSpinner.setEditor(new SpinnerEditor(angleSpinner));
 		motherPanel.add(angleSpinner, "growx 1");
-		parallelEnabledModel.addEnableComponent( angleSpinner, true);
 		UnitSelector angleUnitSelector = new UnitSelector(angleModel);
 		motherPanel.add( angleUnitSelector, "growx 1, wrap");
-		parallelEnabledModel.addEnableComponent( angleUnitSelector , true);
-
+		
 		// set multiplicity
 		JLabel countLabel = new JLabel(trans.get("Stage.parallel.count"));
 		motherPanel.add( countLabel, "align left");
-		parallelEnabledModel.addEnableComponent( countLabel, true);
 		
 		IntegerModel countModel = new IntegerModel( stage, "InstanceCount", 2);
 		JSpinner countSpinner = new JSpinner(countModel.getSpinnerModel());
 		countSpinner.setEditor(new SpinnerEditor(countSpinner));
 		motherPanel.add(countSpinner, "growx 1, wrap");
-		parallelEnabledModel.addEnableComponent( countSpinner, true);
 		
 		// setPositions relative to parent component
 		JLabel positionLabel = new JLabel(trans.get("LaunchLugCfg.lbl.Posrelativeto"));
 		motherPanel.add( positionLabel);
-		parallelEnabledModel.addEnableComponent( positionLabel, true);
 		
 		//	EnumModel(ChangeSource source, String valueName, Enum<T>[] values) {
 		ComboBoxModel<RocketComponent.Position> relativePositionMethodModel = new EnumModel<RocketComponent.Position>(component, "RelativePositionMethod",
@@ -111,21 +89,17 @@ public class StageConfig extends RocketComponentConfig {
 				});
 		JComboBox<?> positionMethodCombo = new JComboBox<RocketComponent.Position>( relativePositionMethodModel );
 		motherPanel.add(positionMethodCombo, "spanx 2, growx, wrap");
-		parallelEnabledModel.addEnableComponent( positionMethodCombo, true);
 		
 		// relative offset labels
 		JLabel positionPlusLabel = new JLabel(trans.get("Stage.parallel.offset"));
 		motherPanel.add( positionPlusLabel );
-		parallelEnabledModel.addEnableComponent( positionPlusLabel, true );		
 		DoubleModel axialOffsetModel = new DoubleModel(component, "AxialOffset", UnitGroup.UNITS_LENGTH);
 		axialOffsetModel.setCurrentUnit(UnitGroup.UNITS_LENGTH.getUnit("cm"));
 		JSpinner axPosSpin= new JSpinner( axialOffsetModel.getSpinnerModel());
 		axPosSpin.setEditor(new SpinnerEditor(axPosSpin));
 		motherPanel.add(axPosSpin, "growx");
-		parallelEnabledModel.addEnableComponent( axPosSpin, true );
 		UnitSelector axialOffsetUnitSelector = new UnitSelector(axialOffsetModel);
 		motherPanel.add(axialOffsetUnitSelector, "growx 1, wrap");
-		parallelEnabledModel.addEnableComponent( axialOffsetUnitSelector , true);		
 		
 		// For DEBUG purposes
 		//System.err.println(stage.getRocket().toDebugTree());