diff --git a/vaporlock/doubledouble/Makefile b/vaporlock/doubledouble/Makefile
index 2f085188..eafc0d1b 100644
--- a/vaporlock/doubledouble/Makefile
+++ b/vaporlock/doubledouble/Makefile
@@ -10,7 +10,7 @@ all:	double.dsk
 double.dsk:	HELLO DOUBLE
 	cp $(EMPTYDISK) double.dsk
 	$(DOS33) -y double.dsk SAVE A HELLO
-	$(DOS33) -y double.dsk BSAVE -a 0x1000 DOUBLE
+	$(DOS33) -y double.dsk BSAVE -a 0x6000 DOUBLE
 
 ###
 
@@ -20,11 +20,15 @@ HELLO:	hello.bas
 ###
 
 DOUBLE:	double.o
-	ld65 -o DOUBLE double.o -C $(LINKERSCRIPTS)/apple2_1000.inc
+	ld65 -o DOUBLE double.o -C $(LINKERSCRIPTS)/apple2_6000.inc
 
 double.o:	double.s \
 	zp.inc hardware.inc pt3_lib_mockingboard_detect.s \
-	pt3_lib_mockingboard_setup.s pt3_lib_detect_model.s
+	pt3_lib_mockingboard_setup.s pt3_lib_detect_model.s \
+	zx02_optim.s \
+	graphics/sworg_hgr.hgr.zx02 \
+	graphics/sworg_dhgr.aux.zx02 \
+	graphics/sworg_dhgr.bin.zx02
 	ca65 -o double.o double.s -l double.lst
 
 ###
diff --git a/vaporlock/doubledouble/double.s b/vaporlock/doubledouble/double.s
index d0e16cfe..258df44a 100644
--- a/vaporlock/doubledouble/double.s
+++ b/vaporlock/doubledouble/double.s
@@ -130,9 +130,42 @@ cp2_loop:
 	bit	PAGE1
 
 
-	;============================
-	; load hi-res image to PAGE2
-	;============================
+	;=======================================
+	; load double hi-res image to MAIN:PAGE1
+	;=======================================
+
+	lda	#<image_dhgr_bin
+	sta	ZX0_src
+	lda	#>image_dhgr_bin
+	sta	ZX0_src+1
+
+        lda	#$20
+
+	jsr	full_decomp
+
+	;=======================================
+	; load double hi-res image to AUX:PAGE1
+	;=======================================
+
+	bit	PAGE2			; map in AUX (80store)
+
+	lda	#<image_dhgr_aux
+	sta	ZX0_src
+	lda	#>image_dhgr_aux
+	sta	ZX0_src+1
+
+        lda	#$20
+
+	jsr	full_decomp
+
+
+	;=================================
+	; load hi-res image to MAIN:PAGE2
+	;=================================
+
+	; turn off eightystore
+
+	sta	EIGHTYSTOREOFF
 
 	lda	#<image_hgr
 	sta	ZX0_src
@@ -144,36 +177,10 @@ cp2_loop:
 	jsr	full_decomp
 
 
-; draw double-hires lines
 
+	sta	FULLGR
 
 
-	lda	#$20		; draw to page0 (MAIN?)
-	sta	HGRPAGE
-
-	lda	#150		; start at 150
-	sta	YPOS
-color_loop:
-	lda	YPOS
-	and	#$f
-	sta	TCOLOR
-	asl
-	asl
-	asl
-	asl
-	ora	TCOLOR
-	sta	TCOLOR		; update color
-
-	lda	YPOS
-	jsr	draw_line_color
-
-	inc	YPOS
-	lda	YPOS
-	cmp	#192
-	bne	color_loop
-
-	sta	EIGHTYSTOREOFF
-
 	; wait for vblank on IIe
 	; positive? during vblank
 
@@ -225,21 +232,21 @@ double_loop:
 	sta	SETAN3		; 4	; doublehiresoff
 	jsr	delay_1552
 
-; 3 lines HIRES
+; 3 lines HIRES PAGE2
 	sta	HIRES		; 4
 	sta	PAGE2		; 4
 	jsr	delay_1552
 
-; 3 lines HIRES
-	sta	HIRES		; 4
-	sta	PAGE1		; 4
+; 3 lines Double-hires
+	sta	SET80COL	; 4	; set 80 column mode
+	sta	CLRAN3		; 4	; doublehireson
 	jsr	delay_1552
 
 ; 3 line Double-HIRES
 
-	sta	SET80COL	; 4
-	sta	CLRAN3		; 4
-
+;	sta	PAGE1		; 4
+	sta	SET_GR		; 4
+	sta	SET_GR		; 4
 	jsr	delay_1552
 
 
@@ -281,39 +288,6 @@ loop6:  dex								; 2
 	rts
 
 
-	;==========================
-	; draw horizontal DHGR line
-	;==========================
-	; color is in TCOLOR
-	; Y position is in A
-	;=========================
-draw_line_color:
-	ldx	#0
-	ldy	#0
-	jsr	HPOSN		; setup GBASL/GBASH with Y position
-
-	ldy	#0
-line_loop_it:
-	; set page2
-	sta	PAGE2
-	lda	TCOLOR
-	sta	(GBASL),Y
-	cmp	#$80
-	rol	TCOLOR
-
-	; set page1
-	sta	PAGE1
-	lda	TCOLOR
-	sta	(GBASL),Y
-	cmp	#$80
-	rol	TCOLOR
-	iny
-
-	cpy	#40
-	bne	line_loop_it
-
-	rts
-
 
 	.include "pt3_lib_detect_model.s"
 ;	.include "pt3_lib_mockingboard_setup.s"
@@ -323,3 +297,7 @@ line_loop_it:
 
 image_hgr:
 	.incbin "graphics/sworg_hgr.hgr.zx02"
+image_dhgr_aux:
+	.incbin "graphics/sworg_dhgr.aux.zx02"
+image_dhgr_bin:
+	.incbin "graphics/sworg_dhgr.bin.zx02"
diff --git a/vaporlock/doubledouble/graphics/Makefile b/vaporlock/doubledouble/graphics/Makefile
index 77a31edd..715494bb 100644
--- a/vaporlock/doubledouble/graphics/Makefile
+++ b/vaporlock/doubledouble/graphics/Makefile
@@ -2,14 +2,16 @@ include ../../../Makefile.inc
 
 ZX02 = ~/research/6502_compression/zx02.git/build/zx02
 PNG_TO_HGR = ../../../utils/hgr-utils/png2hgr
+PNG_TO_DHGR = ../../../utils/hgr-utils/png2dhgr
 LINKER_SCRIPTS = ../../../linker_scripts
 DOS33 = ../../../utils/dos33fs-utils/dos33
 EMPTY_DISK = ../../../empty_disk/empty.dsk
 TOKENIZE = ../../../utils/asoft_basic-utils/tokenize_asoft
 
 all:	\
-	sworg_hgr.hgr.zx02
-	
+	sworg_hgr.hgr.zx02 \
+	sworg_dhgr.bin.zx02 \
+	sworg_dhgr.aux.zx02
 
 ####
 
@@ -19,6 +21,20 @@ sworg_hgr.hgr.zx02:	sworg_hgr.hgr
 sworg_hgr.hgr:	sworg_hgr.png
 	$(PNG_TO_HGR) sworg_hgr.png > sworg_hgr.hgr
 
+####
+
+sworg_dhgr.aux.zx02:	sworg_dhgr.AUX
+	$(ZX02) sworg_dhgr.AUX sworg_dhgr.aux.zx02
+
+sworg_dhgr.AUX:	sworg_dhgr.png
+	$(PNG_TO_DHGR) sworg_dhgr.png sworg_dhgr
+
+sworg_dhgr.bin.zx02:	sworg_dhgr.BIN
+	$(ZX02) sworg_dhgr.BIN sworg_dhgr.bin.zx02
+
+sworg_dhgr.BIN:	sworg_dhgr.png
+	$(PNG_TO_DHGR) sworg_dhgr.png sworg_dhgr
+
 
 ####
 
diff --git a/vaporlock/doubledouble/graphics/sword_dhgr.png b/vaporlock/doubledouble/graphics/sworg_dhgr.png
similarity index 100%
rename from vaporlock/doubledouble/graphics/sword_dhgr.png
rename to vaporlock/doubledouble/graphics/sworg_dhgr.png
diff --git a/vaporlock/doubledouble/hardware.inc b/vaporlock/doubledouble/hardware.inc
index c33aec94..a194b2e9 100644
--- a/vaporlock/doubledouble/hardware.inc
+++ b/vaporlock/doubledouble/hardware.inc
@@ -19,8 +19,8 @@ PAGE1	= $C054
 PAGE2	= $C055
 LORES	= $C056
 HIRES	= $C057
-CLRAN3	= $C05E
-SETAN3	= $C05F
+CLRAN3	= $C05E		; in 80-col mode, enable double graphics
+SETAN3	= $C05F		; in 80-col mode, disable double graphics
 VBLANK	= $C019		; *not* RDVBL (VBL signal low)
 
 ; ROM routines