diff --git a/e2-estia.i b/e2-estia.i
index daee73e..e73a2b2 100644
--- a/e2-estia.i
+++ b/e2-estia.i
@@ -217,7 +217,7 @@ c -------------------------------------------------------
 c dbcn 375642321 j j j j j j j j j j j 15291711
 c stop calculation either at XeY histories, 6.5 days or tally 15 error <0.001
 c nps 39242646 $ works with rssa file from McStas, original tracks 39242646
-stop nps 1e6 CTME 4e5 $f31 0.01
+stop nps 1e8 CTME 4e5 $f31 0.01
 c nps 28e11 $ works with rssa file, value is scaled to 20x source particles
 c write particle tracks
 c ssw 206505 pty=n $ record all neutron tracks crossing outward
diff --git a/geometry/estia_surfaces.i b/geometry/estia_surfaces.i
index 22dea71..6332258 100644
--- a/geometry/estia_surfaces.i
+++ b/geometry/estia_surfaces.i
@@ -1341,10 +1341,10 @@ c  Absorber Plates
 230715  3  py         1.500                 
 230716  3  py        -1.400                 
 c  Lead Shielding Planes                             
-230751  13  py        49.500                 
-230752  13  py        49.400                 
-230753  13  p  0.258819  0.965926  0.000000  37.403                 
-230754  13  p  0.258819  0.965926  0.000000  37.303                 
+230751  13  py        48.500                 
+230752  13  py        48.400                 
+230753  13  p  0.258819  0.965926  0.000000  36.403
+230754  13  p  0.258819  0.965926  0.000000  36.303
 c  Flight Tube                             
 230801  13  cx        12.500                 
 230802  13  cx        12.800