diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_no_prefilt_first_obs_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_no_prefilt_first_obs_MC.mod
index e76cabee2..c99fc00e5 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_no_prefilt_first_obs_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_no_prefilt_first_obs_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=2000,
+estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=400,
     mode_compute=4,first_obs=1000,loglinear,smoother,forecast=100,prefilter=0,
     mcmc_jumping_covariance='MCMC_jump_covar',
     filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_prefilt_first_obs_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_prefilt_first_obs_MC.mod
index a93d88384..8b6094eae 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_prefilt_first_obs_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglin_prefilt_first_obs_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=2000,
+estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=400,
     mode_compute=4,first_obs=1000,loglinear,smoother,forecast=100,prefilter=1,
     mcmc_jumping_covariance='MCMC_jump_covar_prefilter',
     filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_no_prefilter_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_no_prefilter_MC.mod
index 6d4d075f4..33edf99a1 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_no_prefilter_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_no_prefilter_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=2000,
+estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=400,
     mode_compute=4,first_obs=1,loglinear,diffuse_filter,smoother,forecast=100,prefilter=0,
     mcmc_jumping_covariance='MCMC_jump_covar',
     filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_prefilter_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_prefilter_MC.mod
index 9e706d463..191e8c8ea 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_prefilter_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_loglinear_prefilter_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=2000,
+estimation(order=1,datafile='Exp_AR1_trend_data_with_constant',mh_replic=400,
     mode_compute=4,first_obs=1,loglinear,smoother,forecast=100,prefilter=1,
     mcmc_jumping_covariance='MCMC_jump_covar_prefilter',
     filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_MC.mod
index 30aeff52e..5c0b2b984 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=2000,
+estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=400,
             mode_compute=4,first_obs=1,smoother,mh_nblocks=1,mh_jscale=0.3,
             filtered_vars, filter_step_ahead = [1,2,4],
             mcmc_jumping_covariance='MCMC_jump_covar',forecast=100,prefilter=0) P_obs Y_obs junk2;
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_first_obs_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_first_obs_MC.mod
index a2a2afc15..b6eb72e60 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_first_obs_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_no_prefilter_first_obs_MC.mod
@@ -4,7 +4,7 @@ addpath('..');
 generate_trend_stationary_AR1;
 
 estimation(order=1,datafile='AR1_trend_data_with_constant',
-        mh_replic=2000,mode_compute=4,first_obs=1000,smoother,forecast=100,prefilter=0,
+        mh_replic=400,mode_compute=4,first_obs=1000,smoother,forecast=100,prefilter=0,
         mcmc_jumping_covariance='MCMC_jump_covar',
         filtered_vars, filter_step_ahead = [1,2,4],
         mh_nblocks=1,mh_jscale=0.3) P_obs Y_obs junk2;
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_MC.mod
index 8eea5e67d..686b0a56d 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=2000,mode_compute=4,
+estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=400,mode_compute=4,
     first_obs=1,smoother,prefilter=1,
     mh_nblocks=1,mh_jscale=1e-4,
     filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_first_obs_MC.mod b/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_first_obs_MC.mod
index b504becb1..dc432300c 100644
--- a/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_first_obs_MC.mod
+++ b/tests/observation_trends_and_prefiltering/MCMC/Trend_prefilter_first_obs_MC.mod
@@ -3,7 +3,7 @@
 addpath('..');
 generate_trend_stationary_AR1;
 
-estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=2000,mode_compute=4,
+estimation(order=1,datafile='AR1_trend_data_with_constant',mh_replic=400,mode_compute=4,
         first_obs=1000,smoother,prefilter=1,
         mh_nblocks=1,mh_jscale=1e-4,
         filtered_vars, filter_step_ahead = [1,2,4],
diff --git a/tests/observation_trends_and_prefiltering/Trend_diagnostics_MCMC_common.inc b/tests/observation_trends_and_prefiltering/Trend_diagnostics_MCMC_common.inc
index 8c6b30c81..0c29608a8 100644
--- a/tests/observation_trends_and_prefiltering/Trend_diagnostics_MCMC_common.inc
+++ b/tests/observation_trends_and_prefiltering/Trend_diagnostics_MCMC_common.inc
@@ -31,17 +31,17 @@ if max(abs(squeeze(oo_.FilteredVariablesKStepAhead(1,1,2:end-(options_.nk-1)))-o
     error('FilteredVariablesKStepAhead is wrong')
 end
         
-if abs(oo_.PointForecast.Mean.Y_obs(end)- y_forecast_100_periods)>2e-4 || abs(oo_.PointForecast.Mean.P_obs(end)- p_forecast_100_periods)>2e-4
+if abs(oo_.PointForecast.Mean.Y_obs(end)- y_forecast_100_periods)>5e-4 || abs(oo_.PointForecast.Mean.P_obs(end)- p_forecast_100_periods)>5e-4
     error('Mean Point Forecasts do not match')
 end
-if abs(oo_.PointForecast.Median.Y_obs(end)- y_forecast_100_periods)>2e-4 || abs(oo_.PointForecast.Median.P_obs(end)- p_forecast_100_periods)>2e-4
+if abs(oo_.PointForecast.Median.Y_obs(end)- y_forecast_100_periods)>5e-4 || abs(oo_.PointForecast.Median.P_obs(end)- p_forecast_100_periods)>5e-4
     error('Median Point Forecasts do not match')
 end
 
-if abs(oo_.MeanForecast.Mean.Y_obs(end)- y_forecast_100_periods)>2e-4 || abs(oo_.MeanForecast.Mean.P_obs(end)- p_forecast_100_periods)>2e-4
+if abs(oo_.MeanForecast.Mean.Y_obs(end)- y_forecast_100_periods)>5e-4 || abs(oo_.MeanForecast.Mean.P_obs(end)- p_forecast_100_periods)>5e-4
     error('Mean Mean Forecasts do not match')
 end
-if abs(oo_.MeanForecast.Median.Y_obs(end)- y_forecast_100_periods)>2e-4 || abs(oo_.MeanForecast.Median.P_obs(end)- p_forecast_100_periods)>1e-3
+if abs(oo_.MeanForecast.Median.Y_obs(end)- y_forecast_100_periods)>5e-4 || abs(oo_.MeanForecast.Median.P_obs(end)- p_forecast_100_periods)>5e-3
     error('Median Mean Forecasts do not match')
 end