diff --git a/testcases/ExB_shear_atomic_tests/fort_05.90 b/testcases/ExB_shear_atomic_tests/fort_05.90
index 4f39366f04cc41f07203b3152f0b87dab3eb3229..5ca30d2f48108ce7f12212fef11ff951df57a474 100644
--- a/testcases/ExB_shear_atomic_tests/fort_05.90
+++ b/testcases/ExB_shear_atomic_tests/fort_05.90
@@ -1,7 +1,7 @@
 &BASIC
   nrun       = 100000000
   dt         = 0.2
-  tmax       = 100
+  tmax       = 300
   maxruntime = 356400
   job2load   = -1
 /
diff --git a/testcases/ExB_shear_atomic_tests/fort_06.90 b/testcases/ExB_shear_atomic_tests/fort_06.90
index 9056c69243442d24f28317394f4defce5316ce51..c0ea7e22d4b66b7313667bfebcf5e4b36e5aa29b 100644
--- a/testcases/ExB_shear_atomic_tests/fort_06.90
+++ b/testcases/ExB_shear_atomic_tests/fort_06.90
@@ -1,7 +1,7 @@
 &BASIC
   nrun       = 100000000
   dt         = 0.2
-  tmax       = 100
+  tmax       = 300
   maxruntime = 356400
   job2load   = -1
 /
diff --git a/testcases/ExB_shear_atomic_tests/fort_07.90 b/testcases/ExB_shear_atomic_tests/fort_07.90
index b68e7730ad5c05a8ce079b9d8a42395ba7e21ffb..7675a5e8eca6ea3b03eb3a8532c37fac78b9ac82 100644
--- a/testcases/ExB_shear_atomic_tests/fort_07.90
+++ b/testcases/ExB_shear_atomic_tests/fort_07.90
@@ -1,17 +1,17 @@
 &BASIC
-  nrun       = 100!00000000
-  dt         = 1
+  nrun       = 1!00000000
+  dt         = 100
   tmax       = 300
   maxruntime = 356400
   job2load   = -1
 /
 &GRID
-  pmax  = 2
-  jmax  = 1
-  Nx     = 32
-  Lx     = 100!1257
-  Ny     = 32
-  Ly     = 100!628
+  pmax  = 0
+  jmax  = 0
+  Nx     = 128
+  Lx     = 120!1257
+  Ny     = 64
+  Ly     = 70!628
   Nz     = 1
   SG     = .false.
   Nexc   = 1
@@ -36,7 +36,7 @@
   dtsave_0d = 0.5
   dtsave_1d = -1
   dtsave_2d = -1
-  dtsave_3d = 1
+  dtsave_3d = 0.5
   dtsave_5d = 100
   write_doubleprecision = .true.
   write_gamma = .true.
@@ -50,7 +50,7 @@
 &MODEL
 LINEARITY = 'nonlinear'
 RM_LD_T_EQ= .false.
-  Na      = 2
+  Na      = 1
   mu_x    = 0
   mu_y    = 0
   N_HD    = 4
@@ -65,7 +65,7 @@ RM_LD_T_EQ= .false.
   beta    = 0.0
   ExBrate = 0.00
   ExB_NL_CORRECTION = .f.
-  ADIAB_E = .false.
+  ADIAB_E = .t.
   ADIAB_I = .false.
   tau_i   = 1
   MHD_PD  = .false.
@@ -104,10 +104,10 @@ RM_LD_T_EQ= .false.
   Nmodes        = 1
 /
 &MODE
-  I_   = 4
-  J_   = 5
-  amp_ = 1
+  I_   = -4
+  J_   = 4
+  amp_ = 100
 /
 &TIME_INTEGRATION
-  numerical_scheme = 'RK4'
+  numerical_scheme = 'EE'
 /
diff --git a/wk/test_ExB_shear.m b/wk/test_ExB_shear.m
index 8e5558fb68a1e42a0d6c6ca348400e1934445e2f..8da0614ba155e5fe31a2afbadef0d5f927b1cdd8 100644
--- a/wk/test_ExB_shear.m
+++ b/wk/test_ExB_shear.m
@@ -13,8 +13,8 @@ EXECDIR  = [curdir(1:end-2),'bin/'];
 % EXECNAME = 'gyacomo23_dp_O1';
 % EXECNAME = 'gyacomo23_dp';
 % EXECNAME = 'gyacomo23_sp';
-EXECNAME = 'gyacomo23_test';
-% EXECNAME = 'gyacomo23_debug';
+% EXECNAME = 'gyacomo23_test';
+EXECNAME = 'gyacomo23_debug';
 % ------
 NP = '1'; PARA = '1 1 1';
 % NP = '2'; PARA = '1 2 1';
@@ -33,9 +33,11 @@ NP = '1'; PARA = '1 1 1';
 % Mcmillan et al. 2019 no correction
 % INNAME = '5'; 
 % Mcmillan et al. 2019 correction
-INNAME = '6';
+% INNAME = '6';
+% Single mode single step
+INNAME = '7';
 %-------
 RUN   = [MPIRUN,' -np ',NP,' ',EXECDIR,EXECNAME,' ',PARA,' ',INNAME];
 system([MVIN,'; ',RUN,'; ',MVOUT]);
-%%
+%
 fast_analysis