diff --git a/ohmpi/hardware_system.py b/ohmpi/hardware_system.py
index c6ad2a89a6e21916b9a9444f463b14070ebd6ef5..84fac548177e65e0d9afd8784f0c16a02d687ae0 100644
--- a/ohmpi/hardware_system.py
+++ b/ohmpi/hardware_system.py
@@ -511,7 +511,6 @@ class OhmPiHardware:
                 # ax.plot([0, vab_max], [0, vmn_upper_bound * vab_max / vab[k]], '-r', alpha=(k + 1) / n_steps)
                 # ax.plot([0, vab_max], [0, vmn_lower_bound * vab_max / vab[k]], '-g', alpha=(k + 1) / n_steps)
                 # bounds on rab
-                print(f'rab_lb: {vab_list[k] / iab_upper_bound}')
                 rab_lower_bound = np.max([0.1, np.abs(vab_list[k] / iab_upper_bound)])
                 rab_upper_bound = np.max([0.1, np.abs(vab_list[k] / iab_lower_bound)])
                 # bounds on r
@@ -540,6 +539,7 @@ class OhmPiHardware:
                     print('stopped on maximum number of steps reached')
             k = k + 1
             vab_list[k] = np.min(vabs)
+            time.sleep(0.5)
         vab_opt = vab_list[k]
         print(f'Selected Vab: {vab_opt:.2f}')