The top Shot, must have a top shot, , hear it on most photo job here in Hong Kong. We use a as355n , but it is not the machine ,but the way you do it. I do circles, orbit's and very steep turns. if the man with the photo machine is behind you , all the better,but if as per usual, 1 in the front left, 1 in the back left, it is a bit harder . Go round and round at about 40 kt's, not to fast or hard to make them throw up , but alot of time to get their shot