Imho, if you have other options then stay away from these Low Seniority Companys. There is a reason why BA, Virgin Atlantic, etc. have a very high seniority. It Is Simply Because They Offer Good T&Cs, compared to eg. SAIL, Cityjet and other low cost companys. Some might argue that it is because the low cost companys are expanding, they have a low seniority and short time to upgrade. Imho that is not true. It is simply because pilots are leaving, at first chance.