AC performance tuneup times two systems. Filters were good on arrival. Inspect blowers, evaporators in ductwork. Downstairs evaporator coil has a small fracture in it. I added 1 pound of our 410 today. I advise that they do not get any better. they only get worse. I am leaving an estimate for a replacement coil out of warranty. And also leaving estimates for, complete system replacement. Replaced run capacitor on condenser. Washed condenser coils. Advised Lawrence that the system has lost more than 15% of the charge next year than we will need to change out the evaporator coil at a bare minimum. System is 11 years old.