What you are doing may make perfect sense…but so you will know my experience, I had regular hemoptysis for over 3 yrs. I started nebulizing with 3% saline about 16 months ago. The hemoptysis became even more regular. I asked for 7% saline (mixed the 2 at first) & after several months the hemoptysis stopped. It’s now been about 5 months. The only change I made (I am quite active) was “upgrading” to 7%. I do exactly what Sue does for airway clearance. Take care.