diff --git a/src/kc/data/gen_mod/gen_mod.py b/src/kc/data/gen_mod/gen_mod.py
index bba5351..1c519d6 100644
--- a/src/kc/data/gen_mod/gen_mod.py
+++ b/src/kc/data/gen_mod/gen_mod.py
@@ -667,7 +667,7 @@ if __name__ == "__main__":
         #mod_range( presetL, "upr",  2.5, -5.0, 2.3, -5.2)
         #mod_range( presetL, "lwr",  0.5,  2.0, 0.5,  2.0)
 
-    if 1: # 1/14/17
+    if 0: # 1/14/17
 
         seq1L =[
             (778, None)   # meas 50
@@ -821,7 +821,7 @@ if __name__ == "__main__":
 
         seq1L =[
             #(1, None)   # meas 38
-            (38, None)
+            (476, None)
         ]
 
         presetL = dupl_preset( dfltPresetL, "f_4", dfltLabelsL)
@@ -845,7 +845,33 @@ if __name__ == "__main__":
             mod_range( presetL, "lwr",   8.0,  1.0, 8.0, 1.0)    
             mod_range( presetL, "cigain", 10.0,  14.0,  10.0,  14.0 )
         
+    if 1: # 3/11/17
 
+        seq1L =[
+            (1015, None)  # meas 57 (just before section 29)
+            #(1068, None)  # meas 58 (just before section 29)
+        ]
+
+        
+        presetL = dupl_preset( dfltPresetL, "g_1_d", dfltLabelsL)
+
+        # this is a good parameter space - notice that it can
+        # generate 4 lines connecting the diagnals of a cube
+
+        mod_range( presetL, "thr",    10.0, 80.0, 10.0, 80.0 )  # line 1
+        mod_range( presetL, "off",    10.0, 99.0, 10.0, 99.0)
+
+        #mod_range( presetL, "thr",    10.0, 80.0, 10.0, 80.0 )  #  line 2
+        #mod_range( presetL, "off",    99.0, 10.0, 99.0, 10.0)
+        
+        #mod_range( presetL, "upr",  5.0,  -1.5,  5.0,  -1.5 )    
+        mod_range( presetL, "upr", -1.5,  5.0,  -1.5, 5.0 )
+        
+        #mod_range( presetL, "lwr", 0.9,  30.0,  0.9,  30.0 )
+        
+        mod_range( presetL, "cigain", 14.0, 14.0, 14.0, 14.0 )
+
+        
             
         
     # thr    upr  lwr   offs