diff --git a/yaml/inertia_estimation_simulation.yaml b/yaml/inertia_estimation_simulation.yaml
index fdbbfe30a5b76e72dff85f2d0e75bdbcc77b6e29..f992b6df5bc4bf6698e89402b68093646db4c3b6 100644
--- a/yaml/inertia_estimation_simulation.yaml
+++ b/yaml/inertia_estimation_simulation.yaml
@@ -58,6 +58,7 @@ config:
     gyrob_initial_std:            0.1       # rad/sec - initial bias
     acc_drift_std:                0.1     # std dev of acc drift m/s2/sqrt(s)
     gyro_drift_std:               0.1     # std dev of gyro drift rad/s/sqrt(s)
+    bias:                         [0,0,0,0,0,0] # bias prior, usefull for fixing the bias when known
     imu_bias_fix:                 false
     
     #FT
@@ -65,10 +66,9 @@ config:
     torque_noise_std:             1      # std dev of torque noise in N/m
     
     # Dynamics
-    com:                          [0.00,0.00,0.0]                      # center of mass [m] 
-    inertia:                      [0.014958,0.014648,0.0237319]      # moments of inertia i_xx, i_yy, i_zz [kg m2]
-    # inertia:                      [0.015,0.015,0.015]
-    mass:                         2.02                                  # mass [kg]
+    com:                          [0.00,0.00,0.0]                  # center of mass [m] 
+    inertia:                      [0.014958,0.014648,0.0237319]    # moments of inertia i_xx, i_yy, i_zz [kg m2]
+    mass:                         2.02                             # mass [kg]
     com_fix:                      true
     inertia_fix:                  false
     mass_fix:                     true
@@ -133,6 +133,7 @@ config:
       topic: " "
       topic_acc: "/fmu/sensor_accel/out"
       topic_gyro: "/fmu/sensor_gyro/out"
+      topic_sensorCombined: "/fmu/sensor_combined/out"
       topic_actuators: "/fmu/actuator_outputs/out"
       topic_batteryStatus: "/fmu/battery_status/out"
       sensor_name: "sensor FTI"
@@ -178,4 +179,4 @@ config:
       map_frame_id: "map"
       odom_frame_id: "odom"
       base_frame_id: "base_footprint"
-      publish_odom_tf: true
+      publish_odom_tf: true
\ No newline at end of file
diff --git a/yaml/mass_and_com_estimation_simulation.yaml b/yaml/mass_and_com_estimation_simulation.yaml
index c463cb846fd3df127996542c9a3295ed82bdef7b..8f62229aa3076ce57f6af6ae6b2ab81866d71ae1 100644
--- a/yaml/mass_and_com_estimation_simulation.yaml
+++ b/yaml/mass_and_com_estimation_simulation.yaml
@@ -52,12 +52,13 @@ config:
       pose: [0,0,0, 0,0,0,1]
     
     # IMU
-    acc_noise_std:                0.1      # std dev of acc noise in m/s2 # 0.6/4
-    gyro_noise_std:               0.01       # std dev of gyro noise in rad/s 
-    accb_initial_std:             0.01       # m/s2    - initial bias
-    gyrob_initial_std:            0.01       # rad/sec - initial bias
-    acc_drift_std:                0.0001     # std dev of acc drift m/s2/sqrt(s)
-    gyro_drift_std:               0.0001     # std dev of gyro drift rad/s/sqrt(s)
+    acc_noise_std:                0.1           # std dev of acc noise in m/s2 # 0.6/4
+    gyro_noise_std:               0.01          # std dev of gyro noise in rad/s 
+    accb_initial_std:             0.01          # m/s2    - initial bias
+    gyrob_initial_std:            0.01          # rad/sec - initial bias
+    acc_drift_std:                0.0001        # std dev of acc drift m/s2/sqrt(s)
+    gyro_drift_std:               0.0001        # std dev of gyro drift rad/s/sqrt(s)
+    bias:                         [0,0,0,0,0,0] # bias prior, usefull for fixing the bias when known
     imu_bias_fix:                 false
     
     #FT
@@ -68,6 +69,7 @@ config:
     com:                          [0.00,0.00,0.0]                      # center of mass [m] 
     inertia:                      [0.0134943,0.0141622,0.0237319]      # moments of inertia i_xx, i_yy, i_zz [kg m2]
     mass:                         2                                    # mass [kg]
+
     com_fix:                      false
     inertia_fix:                  true
     mass_fix:                     false 
@@ -87,7 +89,7 @@ config:
     type: "SensorPose"
     plugin: "core"
     extrinsic:
-      pose: [0.0,0.0,0.0, 0,0,0,1] #amg
+      pose: [0.0,0.0,0.0, 0,0,0,1] 
     std_p: 0.0001
     std_o: 0.0001
 
@@ -98,13 +100,11 @@ config:
     type: "ProcessorForceTorqueInertialDynamics"
     sensor_name: "sensor FTI"
     plugin: "bodydynamics"
-    # time_tolerance: 0.00125 # 1/471/2
     time_tolerance: 0.01 # amg 1/50/2
     apply_loss_function: false
     unmeasured_perturbation_std: 0.00001
     state_getter: true
     state_priority: 1
-    # n_propellers: 6
     keyframe_vote:
       voting_active:    true
       max_time_span:    0.2   
@@ -131,12 +131,13 @@ config:
       topic: " "
       topic_acc: "/fmu/sensor_accel/out"
       topic_gyro: "/fmu/sensor_gyro/out"
+      topic_sensorCombined: "/fmu/sensor_combined/out"
       topic_actuators: "/fmu/actuator_outputs/out"
       topic_batteryStatus: "/fmu/battery_status/out"
       sensor_name: "sensor FTI"
-      imu_x_axis: 1
-      imu_y_axis: -2
-      imu_z_axis: -3
+      imu_x_axis: 1     # PX4 axis are frd (front right down)
+      imu_y_axis: -2    # PX4 axis are frd
+      imu_z_axis: -3    # PX4 axis are frd
       cov_imu_source: "sensor"
       in_degrees: false
       synchronization_mode: "imu"
diff --git a/yaml/mass_estimation.yaml b/yaml/mass_estimation.yaml
index 938db2884d82c97568dc304026722d36782b504e..afe479c1312f69d55937fea6e41322a1d01aec35 100644
--- a/yaml/mass_estimation.yaml
+++ b/yaml/mass_estimation.yaml
@@ -4,7 +4,7 @@ config:
     profiling: false
     profiling_file: "~/wolf_demo_uav_identification.txt"
     print_problem: true
-    print_depth: 1          # only if print_problem
+    print_depth: 2          # only if print_problem
     print_constr_by: false     # only if print_problem
     print_metric: true        # only if print_problem
     print_state_blocks: true  # only if print_problem
@@ -58,6 +58,7 @@ config:
     gyrob_initial_std:            0.01       # rad/sec - initial bias
     acc_drift_std:                0.0001     # std dev of acc drift m/s2/sqrt(s)
     gyro_drift_std:               0.0001     # std dev of gyro drift rad/s/sqrt(s)
+    bias:                         [0,0,0,0,0,0]
     imu_bias_fix:                 false
     
     #FT