the beauty of the pump is the basal so yes......doing a full test of the basal over a 24 hour period is the best and first course of action for any pumper...
blood sugar response to meals and insulin doses, all be it made easier with the pump, still requires some thinking by the user....
is the dose right?
is the timing right?
insulin/carb ratio right etc....
even with MDI you can eat when you like or not if you chose too and you should still be able to achieve BG in target...