Thank you all for you opinions/experience. I am still so unsure about nebs. We go back to the clinic tomorrow, so I'll bring it up again (I have read prior posts about Dr. Warwick and looked around on-line; which is another reason that I haven't been pushing pulmozyme). I religiously perform chest pt at least 2 times per day (and give him extra pats at burp time) but I of course want to do anything else to prolong Max's health/life. I wish that it was much more clear cut but what I wish for most of all is that my beautiful baby boy didn't have cf.