I had the install yesterday and the installer did have a SWiM16. However the ordering system did take into account I have 12 tuners and let the installer know I needed a SWiM16. I had the CSR when placing the order note that I needed one on the notes to the installer.I also called D* the next day and a CSR emailed the installing office to make sure he had one. Doug's advice is also good if the installer calls to let you know he is on the way ask so no ones time is wasted. It was definitely not on my work order the installer had to call from my home to add the SWiM16 to the order.