The pay for mil aircrew is not bad but the new scheme does not introduce certainty of income (bonus subject to change by as yet unknown amounts), no certainty of location, no certainty of flying. If money is the main driver then staying in is a great option but pilots will still leave in large numbers. The flesh peddlers have been at pains to point out they don't want to keep lots of people just a few percent more than currently resign over time so most people are no better placed than they were and will still leave. When the majors start recruiting expect a lot of people to jump.