I think that ISO 1000 would be overkill. I think I would use 400 as the setting. If you are going to have control over the plane I would just use ISO 200 and maybe a tripod. This is a very good lens. I would not worry about it being slow. If you get a faster, non VR lens it would be much harder to handhold because of weight and lack of the VR. If you can afford it, buy it. Actually, buy two and give me one.