You have to remember that in order for Ryanair to reach 300 aircraft you have to train lots of pilots. You start training them the year before for each succesive years growth, therefore, it is natural to have too many FO's around December every year as they are pilots trained with the spring deliveries in mind. When the growth stops, then musical chairs stops and the 'fast trick to command' also stops. That is what you need to factor in to your plans. This is definitely not the place to get stuck in the right seat.