--- ./optar.h	2022-04-04 19:25:41.000000000 -0400
+++ ./optar.h	2022-04-04 19:40:33.000000000 -0400
@@ -8,10 +8,11 @@
 		   */
 #define CPITCH 24 /* Distance between cross centers */
 
+/* https://www.monperrus.net/martin/store-data-paper */
 /* XCROSSES A4 65, US Letter 67. */
-#define XCROSSES 65 /* Number of crosses horizontally */
+#define XCROSSES 45 /* Number of crosses horizontally */
 /* YCROSSES A4 93, US Letter 87. */
-#define YCROSSES 93 /* Number of crosses vertically */
+#define YCROSSES 58 /* Number of crosses vertically */
 
 #define DATA_WIDTH (CPITCH*(XCROSSES-1)+2*CHALF) /* The rectangle occupied by
 						    the data and crosses */