Report Astar Main Rotor Balancing in Maintenance Ops Posted May 6 2 hours ago, DGP said: I would say you are just noticing ground effect roughness as the air under the ship builds and spills...that is pretty normal in all landings...try hovering out of ground effect for a comparison. Good point, maybe its just me. Hover and forward flight are great. I guess we’ll see once we pack it full of mouth breathers or with heavy sling loads. Thanks for the help.