BTW took a look at least the first video saisran, and.... if he's moving around too much then be patient as your first shot missed due to poor geometry, i.e. it was a poor off-boresight shot, something you should do with 9Xs as anything prior to L or M 'winders (don't know the equivalent) missiles, or "Shoot HUD", meaning get him within your HUD and if he's not moving, shoot him. Much like your second shot where it worked. Sure fring a missile can work him into position and maybe your intent which is fine, but usually with the more maneuverable opponents. And yeah it gets trustrating but you should also go vertical, come over the top (hopefully he won't reverse on you like a Rafale) and then he'll "mellow out" a bit and you can bag him quicker. And be patient :)