Connie, your experience with a response-phobic Pulmo reminds me of my experience with two Pulmos. Although I like them both the first one arranged for me to get a percussion vest, and concurrently started me nebulizing 0.09% saline. At that time I hadn't discovered the Mayo Connect Treasure Trove of useful treatment info for our maladies. The Pulmo didn't mention that 0.09 is but one of multiple saline concentrations and I was too dumb to question his choice.
After he bailed out of his practice I transferred to his office colleague who continued on the same regimen for months and months, up until the time I mentioned to him that I had learned of the availability of a 7% solution which was reputed to kill or at least make life miserable for MAC infections. He gave no indication that he had ever heard that good news, but happily complied with my request to amp up my saline Rx to 7%. And I've lived happily ever after...sorta. Don