Wow! Thats great! I'm glad to hear these things, as I started feeling that us continuing the inhaled GSH was the reason that Katie keeps culturing PA! I cut her down to 1 inhaled a day this month since we're doing the TOBI, she was doing 3 inhaled's daily. Her PA is asymptomatic, and she's really active and healthy.
It sounds like the GSH still helps the kids, even in the presence of persistant PA.