diff --git a/e2-estia.i b/e2-estia.i
index f579ac7..4d65fdc 100644
--- a/e2-estia.i
+++ b/e2-estia.i
@@ -119,7 +119,7 @@ c read file=tallies/full_mesh.i echo
 c read file=tallies/full_mesh_p.i echo
 c read file=tallies/full_mesh_np.i echo
 c read file=tallies/NBPI_f4.i echo
-read file=tallies/BBG_f4.i echo
+c read file=tallies/BBG_f4.i echo
 c read file=tallies/BBG_f5.i echo
 read file=tallies/inbunker_f4.i echo
 read file=tallies/chopper_pit_doses.i echo
diff --git a/sources/e2_2m_mod.i b/sources/e2_2m_mod.i
index 85d7209..20304f2 100644
--- a/sources/e2_2m_mod.i
+++ b/sources/e2_2m_mod.i
@@ -4,7 +4,7 @@ c cut all photons that can't produce neutrons
 cut:p 1e+08 1.667
 c but adapted to model geometry and actual size of Estia beam extraction
 c make sure to supply the correct WWINP file
-WWP:n  j j 2 j -1 j 1.0 1j 5e15 1j
+WWP:n  j j 4 j -1 j 1.0 1j 2.0E+13 1j
 c the source definition with neutrons/s
 sdef  dir=d1 erg=fdir d2 x=199.5 y=d23 z=d24  vec=1 0 0 tr=101
         par=n ara=165.0 wgt=6.14727e+13
@@ -15,7 +15,7 @@ sp1     0 5.01272E+12 1.04029E+12 2.01432E+12 1.39792E+12
         5.27271E+12 1.97474E+12
 ds2 q -1 11 0 12 0.5 13 0.866 14 0.9659 15 0.9848 16
        0.99619 17 0.9975640 18 0.998629 19 0.999390 20 0.999847 21 1 22
-c Should use source biasing. ??sb2 1 2 3 4 5 6 7 8 9 10 11??
+c Use source biasing to sample higher energy particles more.
 si11 0 1
 sp11 0 1.0000E-20
 C ------------------------------------------------------------------------
diff --git a/tallies/e1_e2_f5.i b/tallies/e1_e2_f5.i
index f2345b0..acdfa9b 100644
--- a/tallies/e1_e2_f5.i
+++ b/tallies/e1_e2_f5.i
@@ -19,7 +19,7 @@ fq45 e f
 c     1-255 256 257 268 259-265 266-268 269-508 509-end
 pd45     0.01 276r $ in monolith
          0.05 297r $ ess outside
-         0.01 0.1 78r $ NBOA to NFGA
+         0.01 0.01 78r $ NBOA to NFGA
          0.1 75r $ up to after CPC1
-         0.2 34r $ up to after CPC2
-         0.5 91r $ up to end
+         0.25 34r $ up to after CPC2
+         1.0 91r $ up to end