An exemplary system includes a programmer configured to instruct an implantable device and a qualification module with instructions to call for tests performed by an implantable device configured for delivery of CRT, to receive results from the tests, to analyze the results and to decide, based on the analysis, if the patient qualifies for automatic, implantable device-based optimization of one or more CRT parameters and, only if the patient qualifies for automatic, implantable device-based optimization of one or more CRT parameters, presenting a graphical user interface that comprises a selectable control to enable an algorithm of an implantable device to automatically optimize at least one of the one or more cardiac resynchronization therapy parameters. Other exemplary methods, devices, systems, etc., are also disclosed.