I dont understand that. Mine holds like a stone (when the pig is operating correctly). Not unless your gain is too loose or tight but I know you checked that. If the wind is 5-7mph...I fly the L2 (AKA ParkZone J3 Cub with military paint job). If it's light and vairable...out comes the Pro for a little front yard action. Looking to get one more hover tonight here in the basement and call it good. Gotta order a few more tail motors and another Main....SPARES man!