diff --git a/scenarios/domains/crossing/p2/rexd_config.cfg b/scenarios/domains/crossing/p2/rexd_config.cfg
index 76f1d9176b366e92b17515b0da61f788f0d8a87d..e78e5f67f7f7437b182aebb085ced00eb55f59e4 100644
--- a/scenarios/domains/crossing/p2/rexd_config.cfg
+++ b/scenarios/domains/crossing/p2/rexd_config.cfg
@@ -21,7 +21,7 @@ exploration_known_threshold = 2
 
 confirm_dangerous_actions = false
 
-use_rmax = true
+use_rmax = false
 use_vmin = false
 rmax_reward = 15
 vmin_value = 0.1
diff --git a/scenarios/domains/crossing/p3/rexd_config.cfg b/scenarios/domains/crossing/p3/rexd_config.cfg
index 111c02ef6f3203f5d1a8dc493ce369705d93e751..6f7b9234e39e0398f6f4b3feadfe073dded94d4d 100644
--- a/scenarios/domains/crossing/p3/rexd_config.cfg
+++ b/scenarios/domains/crossing/p3/rexd_config.cfg
@@ -21,7 +21,7 @@ exploration_known_threshold = 2
 
 confirm_dangerous_actions = false
 
-use_rmax = true
+use_rmax = false
 use_vmin = false
 rmax_reward = 15
 vmin_value = 0.1
@@ -34,8 +34,8 @@ learner = lfit
 learner_path = lfit
 lfit_learner_max_action_variables = 3
 lfit_learner_conflicts_avoid_all = false
-lfit_learner_conflicts_heuristic_max_iterations = 400
-lfit_learner_conflicts_heuristic_max_rules_per_iter = 1000
+lfit_learner_conflicts_heuristic_max_iterations = 200
+lfit_learner_conflicts_heuristic_max_rules_per_iter = 600
 lfit_learner_score_optimistic_value = 0.95
 lfit_learner_score_use_confidence = true
 lfit_learner_score_likelihood_scaling = 1.0