Well I pull the trigger to and install Air Tabs on my camper. Hoping to cut the wind noise around the passenger door and reduce bugs. We will see how it works. ART
The purpose of air tabs on an aircraft is to improve slow flight handling and reduce stall speed. Their purpose on a metal box with attached a/c's, vents, antenna's etc seems ill defined at best. So far it looks like "lets stick 'em on & see what we get". Without repeatable data based upon identical or nearly so configurations their value cannot be anything other than costly subjective hearsay. YMMV Good luck