diff --git a/CFTubes.scad b/CFTubes.scad
index 61b8b3a..4b82b2b 100644
--- a/CFTubes.scad
+++ b/CFTubes.scad
@@ -1103,13 +1103,70 @@ COLOURSCHEME_PETGHF_BLUE = [BAMBU_PETGHF_LAKE_BLUE, BAMBU_PETGHF_LAKE_BLUE, "",
 // 	TrussRodSingleAction(taper_points=[-extra, l], extra=true, tolerance = 0.24);
 // }
 
-module TwoBangerMk2(include_colours=[0,1]) {
-	TaperNeck(string_spacing_bridge=20, string_spacing_nut=20, num_strings=2, extra_height=6, fret_widths=concat([3.6], [ for (i=[0:50]) 2.4 ]), num_frets=34, fret_side_marker_x_angle=-23, fret_side_marker_y_angle=5, include_colours=include_colours);
+module TwoBangerMk2(include_colours=[0,1], preview=false) {
+	module MyNeck() {
+		TaperNeck(
+			string_spacing_bridge=20,
+			string_spacing_nut=20,
+			num_strings=2,
+			string_margin=5,
+			target_neck_thickness=15,
+			scallop_depth=2.5,
+			extra_height=6,
+			fret_widths=concat([3.6], [ for (i=[0:50]) 2.4 ]),
+			num_frets=34,
+			fret_side_marker_x_angle=-23,
+			fret_side_marker_y_angle=5,
+			include_colours=include_colours,
+		) {
+			body_height = 30;
+			behind_bridge = 100;
+			epsilon = 0.000001;
+			radius = 4;
+			w = 30 - radius*2;
+			hull() {
+				// translate([-w/2, 475-behind_bridge-epsilon, -epsilon]) cube([30, epsilon, epsilon]);
+				// translate([-w/2, -behind_bridge, -body_height]) cube([30, 460, body_height]);
+				$fn = 64;
+				translate([-w/2, radius-behind_bridge, radius-body_height]) sphere(radius);
+				translate([+w/2, radius-behind_bridge, radius-body_height]) sphere(radius);
+				translate([+w/2, radius-behind_bridge, 0]) sphere(radius);
+				translate([-w/2, radius-behind_bridge, 0]) sphere(radius);
+				translate([-w/2, 440-behind_bridge, radius-body_height]) sphere(radius);
+				translate([+w/2, 440-behind_bridge, radius-body_height]) sphere(radius);
+				translate([+w/2, 495-behind_bridge, 0]) sphere(radius);
+				translate([-w/2, 495-behind_bridge, 0]) sphere(radius);
+			}
+		}
+	}
+
+	module TrussRods() {
+		translate([0, 630+270, -4]) rotate([0, 0, 180]) TrussRod();
+		translate([0, -100, -14]) TrussRodSingleAction();
+	}
+
+	// reinforcing_tube_positions = [
+	// 	[-10, 125, 0],
+	// 	[ 10, 125, 0],
+	// 	[  0, 125, -10],
+	// ];
+	// module CFs(x0=-1000, x1=-1000) {
+	// 	for (v = reinforcing_tube_positions) CFTubeCutout2(v, x0, x1);
+	// }
+
+	if (preview) {
+		TrussRods();
+		// CFs();
+		color("#FF000080") MyNeck();
+	} else {
+		MyNeck();
+	}
 }
 Guitar_Scale_Length_mm = PBass_Scale_mm;
 
 colour_scheme = COLOURSCHEME_ABS_BLUE;
-color(colour_scheme[0]) TwoBangerMk2([0]);
-color(colour_scheme[1]) TwoBangerMk2([1]);
-color(colour_scheme[2]) TwoBangerMk2([2]);
-color(colour_scheme[3]) TwoBangerMk2([3]);
+TwoBangerMk2(preview=true);
+// color(colour_scheme[0]) TwoBangerMk2([0]);
+// color(colour_scheme[1]) TwoBangerMk2([1]);
+// color(colour_scheme[2]) TwoBangerMk2([2]);
+// color(colour_scheme[3]) TwoBangerMk2([3]);
diff --git a/EllipticalNeck.scad b/EllipticalNeck.scad
index 0024d92..438b86e 100644
--- a/EllipticalNeck.scad
+++ b/EllipticalNeck.scad
@@ -187,6 +187,8 @@ module TaperNeck(
 					}
 				}
 			}
+		// Add any children to this so other functions will difference from the additions
+		children();
 	}
 	module scallop(fret) {
 			x0 = fret_scale_length(fret-1) - get_fret_width(fret-1)/2;
@@ -276,7 +278,7 @@ module TaperNeck(
 
 	module carved_stock() {
 		render() difference() {
-			neck_stock();
+			neck_stock() children();
 			scallops();
 			scallop(num_frets+1);
 			// Chop off anything above the frets
@@ -304,14 +306,14 @@ module TaperNeck(
 		has3 = list_has(include_colours, 3);
 		if (has0) {
 			render() difference() {
-				carved_stock();
+				carved_stock() children();
 				if (!has1) intersect_fret_layers();
 				if (!has2) fret_inlays();
 				if (!has3) fret_side_markers();
 			}
 		} else render() intersection() {
 			difference() {
-				carved_stock();
+				carved_stock() children();
 				if (!has1) intersect_fret_layers();
 				if (!has2) fret_inlays();
 				if (!has3) fret_side_markers();