The problem for the modular guys is that there is an ever dwindling list of possible employers. BMI is gone, Easy is tied in with wih CTC, Ryanair have taken on loads of integrated, Flybe are overcrewed, Aer Lingus and BA are running their own cadet schemes and any DE pilots must have time on a type. Those airlines probably account for about 90% of the annual jobs in the UK and Ireland alone. Also many of the charter outfits are either tied into CTC or can get any number of experienced pilots by offering market rates and industry standard T&CS so lure them across from a certain loco as pointed out by Mike.
That really leaves the small niche operators where competition will be tough for very few jobs. Quite possibly the machine you end up flying could pigeonhole you for the rest of your career and limit progression.