Good morning, I showed my dad some benefits of adding OPEP therapy last night by using the Aerobika and he was very impressed by the benefits so he wants to get one to use with his Aeroeclipse nebulizer now rather than waiting another month for his initial appointment with his pulmonologist. Looks like Tampa Specialty Pharmacy sells them for $59. I was wondering if you use the model that has the meter on it which helps the user know how hard to exhale? If so, do you find it useful? Your input with this is much appreciated since we currently don’t know anyone else who uses the Aerobika other than you and we plan to drive to Tampa later this morning to get the device. Thanks again, Scott