diff --git a/panel.py b/panel.py
index 1a80e87..36baeec 100644
--- a/panel.py
+++ b/panel.py
@@ -1,18 +1,46 @@
+from collections import deque
 from random import random
 import wx
+import numpy as np
 
 from slic.gui.widgets import LabeledMathEntry 
-from slic.gui.widgets import make_filled_hbox, make_filled_vbox
+from slic.gui.widgets import make_filled_hbox, make_filled_vbox, EXPANDING
 from slic.gui.widgets.plotting import PlotPanel
 
+from bstrd import BS, bsstream
+
+# config
+#STAGEpv = epics.PV('SLAAR11-LMOT-M452:MOTOR_1.VAL') # global globi
+chname_amplitude  = "SARES11-SPEC125-M1.edge_amplitude"
+chname_jitter = "SARES11-SPEC125-M1.edge_position"
+chname_deriv = "SARES11-SPEC125-M1.edge_derivative"
+chname_events = "SAR-CVME-TIFALL4:EvtSet"
+chname_iZero = "SAROP11-PBPS110:INTENSITY"
+length = 500
+mm2fs = 6671.2 # lightspeed and delay stages
+threshold = 7
+
+# create channel
+ch_amp  = BS(chname_amplitude)
+ch_jitter = BS(chname_jitter)
+ch_events = BS(chname_events)
+ch_iZero = BS(chname_iZero)
+ch_deriv = BS(chname_deriv)
+
 
 class MainPanel(wx.Panel):
 
     def __init__(self, parent):
         super().__init__(parent)
 
-        self.beans = []
-        self.spilled = []
+        self.evts    = np.empty((1000,256))
+        self.jitter  = np.empty(1000)
+        self.amp     = np.empty(1000)
+        self.iZero   = np.empty(1000)
+        self.deriv = np.empty((1000,2048))
+
+        self.beans = deque(maxlen=10)
+        self.spilled = deque(maxlen=10)
 
         btn_minus = wx.Button(self, label="-")
         btn_plus  = wx.Button(self, label="+")
@@ -31,7 +59,7 @@ class MainPanel(wx.Panel):
         plots = (plot_beans, plot_spilled)
         hb_plots = make_filled_hbox(plots)
 
-        widgets = (hb_btns, le_beans, le_spilled, hb_plots)
+        widgets = (hb_btns, le_beans, le_spilled, EXPANDING, hb_plots)
         box = make_filled_vbox(widgets, border=10)
         self.SetSizerAndFit(box)
 
@@ -40,13 +68,13 @@ class MainPanel(wx.Panel):
         btn_check.Bind(wx.EVT_BUTTON, self.on_click_check)
 
 
-
     def on_click_minus(self, _event):
         le = self.le_beans
         current = le.GetValue()
         le.SetValue(current - 1)
         self.update_plot()
 
+
     def on_click_plus(self, _event):
         if random() < 0.9:
             le = self.le_beans
@@ -56,12 +84,40 @@ class MainPanel(wx.Panel):
         le.SetValue(current + 1)
         self.update_plot()
 
+
     def on_click_check(self, _event):
-        percent = self.get_percentage()
-        msg = f"You spilled {percent:.2}% of the beans."
-        self.le_beans.SetValue(0)
-        self.le_spilled.SetValue(0)
-        wx.MessageBox(msg, "Spillage Stats", wx.OK|wx.ICON_WARNING)
+
+        self.evts    = np.empty((1000,256))
+        self.jitter  = np.empty(1000)
+        self.amp     = np.empty(1000)
+        self.iZero   = np.empty(1000)
+        self.deriv = np.empty((1000,2048))
+
+
+        def goodshots(events, *arrays):
+            fel = events[:, 13]
+            laser = events[:, 18]
+            darkShot = events[:, 21]
+            pumped_shots = np.logical_and.reduce((fel, laser, np.logical_not(darkShot)))
+            return [a[pumped_shots] for a in arrays]
+
+
+#        percent = self.get_percentage()
+#        msg = f"You spilled {percent:.2}% of the beans."
+#        self.le_beans.SetValue(0)
+#        self.le_spilled.SetValue(0)
+#        wx.MessageBox(msg, "Spillage Stats", wx.OK|wx.ICON_WARNING)
+        for i in range(1000):
+            self.evts[i] = ch_events.get()
+            self.jitter[i] = ch_jitter.get()
+            self.amp[i] = ch_amp.get()
+            self.iZero[i] = ch_iZero.get()
+            self.deriv[i] = ch_deriv.get()
+            next(bsstream)
+
+        self.deriv, self.amp, self.jitter, self.iZero = goodshots(self.evts, self.deriv, self.amp, self.jitter, self.iZero)
+        self.update_plot()
+
 
     def get_percentage(self):
         b = self.le_beans.GetValue() or 0
@@ -82,10 +138,20 @@ class MainPanel(wx.Panel):
     def draw_plot(self):
         self.plot_beans.clear()
         self.plot_spilled.clear()
-        self.plot_beans.plot(self.beans)
-        self.plot_spilled.plot(self.spilled)
+        self.plot_beans.plot(self.deriv[0], color='grey')
+        self.plot_beans.plot(self.deriv[-1], color='grey')
+        self.plot_beans.plot(self.deriv[10], color='grey')
+        self.plot_beans.plot(self.deriv[-10], color='grey')
+        self.plot_beans.plot(np.mean(self.deriv, axis=0), color='orangered')
+        self.plot_spilled.plot(self.jitter)
         self.plot_beans.draw()
         self.plot_spilled.draw()
 
 
+    def goodshots(events, *arrays):
+        fel = events[:, 13]
+        laser = events[:, 18]
+        darkShot = events[:, 21]
+        pumped_shots = np.logical_and.reduce((fel, laser, np.logical_not(darkShot)))
+        return [a[pumped_shots] for a in arrays]