diff --git a/script/PumpProbeXES_W1_v2.py b/script/PumpProbeXES_W1_v2.py
index 4d6a9a0..5ba330c 100644
--- a/script/PumpProbeXES_W1_v2.py
+++ b/script/PumpProbeXES_W1_v2.py
@@ -46,34 +46,49 @@ ROI1_On = ChannelDoubleArray('X10DA-PILATUS-1:Stats1:ProfileCursorX_RBV', 'X10DA
 ROI2_On = ChannelDoubleArray('X10DA-PILATUS-1:Stats2:ProfileCursorX_RBV', 'X10DA-PILATUS-1:Stats2:ProfileCursorX_RBV' , ROI2size)
 
 
+detectors = [SAI01, SAI02, RingCurrent, PilExpTime, PilFileNum, TotalCounts, TiffFileNumber, TiffFileNumber, ROI4, ROI1_On, ROI2_On]
+for det in detectors:
+    det.initialize()
+    
 #Pseudo-devices
-class Roi1_Off(Readable, ReadableArray):
+class Roi1Off(Readable, ReadableArray):        
     def read(self):
+        before_sample()
         DELAY.write(100)
         time.sleep(0.1)
-        self.cache = caget('X10DA-PILATUS-1:Stats1:ProfileCursorX_RBV', '[d')
-        DELAY.write(0)
+        self.cache = caget(ROI1_On.channelName, '[d')        
         return self.cache 
         
     def getSize(self):
         return ROI1.getSize()
-ROI1_Off=Roi1_Off()
 
-
-class Roi1Diff(Readable, ReadableArray):
+class Roi2Off(Readable, ReadableArray):        
     def read(self):
-        return arrsub(ROI1_On.take(), ROI1_Off.cache)
+        self.cache = caget(ROI2_On.channelName, '[d')
+        DELAY.write(0)
+        return self.cache 
+        
+    def getSize(self):
+        return ROI2.getSize()
+        
+ROI1_Off=Roi1Off()
+ROI2_Off=Roi2Off()
+
+class RoiDiff(Readable, ReadableArray):
+    def __init__(self, roi_on, roi_off):
+        self.roi_on = roi_on
+        self.roi_off = roi_off
+        
+    def read(self):
+        return arrsub(self.roi_on.take(), self.roi_off.cache)
 
     def getSize(self):
-        return ROI1.getSize()
-ROI1_Diff=Roi1Diff()
+        return self.roi_on.getSize()
 
+ROI1_Diff=RoiDiff(ROI1_On, ROI1_Off)
+ROI2_Diff=RoiDiff(ROI2_On, ROI2_Off)
 
 
-detectors = [SAI01, SAI02, RingCurrent, PilExpTime, PilFileNum, TotalCounts, TiffFileNumber, TiffFileNumber, ROI4, ROI1_On, ROI1_On]
-for det in detectors:
-    det.initialize()
-
 def before_sample():
     DELAY.write(0)
     caputq('X10DA-PILATUS-1:cam1:Acquire', 1)
@@ -84,7 +99,8 @@ def before_sample():
     sleep(0.1)
     
 try:
-    tscan(detectors + [ROI1_Off, ROI1_Diff], 30, 0, before_read = before_sample)
+    #tscan(detectors + [ROI1_Off, ROI1_Diff, ROI2_Off, ROI2_Diff], 30, 0, before_read = before_sample)
+    vscan(DELAY, detectors + [ROI1_Off, ROI1_Diff, ROI2_Off, ROI2_Diff], [0,100], passes=30, before_read = before_sample)
 finally:
     for det in detectors:
         det.close()