diff --git a/PeakOTron.py b/PeakOTron.py
index 9baa771be0e870ed2d9c39f2a3c97ffb4b47cc84..514f8ea7d097795f9c23f65dd165a5de3bb2d989 100644
--- a/PeakOTron.py
+++ b/PeakOTron.py
@@ -70,15 +70,13 @@ class BandWidthOptimiser:
 
         
 
-    def __init__(self, data, kernel="gaussian", alpha = 0.99, n_kde_samples=2**13):
+    def __init__(self, data, kernel="gaussian", alpha = 0.95, n_kde_samples=2**13):
         if(alpha<=0.5):
             raise ValueError("alpha must be above 0.5")
         
         self.data = data
         self.PPF = self._PPF(self.data)
-        self.x_low = self.PPF(0.5-alpha/2)
-        self.x_hi = self.PPF(0.5+alpha/2)
-        self.data = self.data[(self.data>self.x_low) & (self.data<self.x_hi)]
+        self.data = self.data[(self.data<self.PPF(alpha))]
         self.kernel=kernel
         self.n_kde_samples=n_kde_samples
         self.last_arg = None
@@ -94,6 +92,7 @@ class BandWidthOptimiser:
         return loss
 
 
+
                
                                               
 class BinnedLH: