Excellent post Pemworth
Jet2 business model is seasonal. its a buckets & spades airline with some city & ski breaks thrown in. Pilots in that type of operation are only required seasonally so unless you work for one of the legacy B&S operations such as Monarch, ThomasCook and the like where you'll be paid 100% year round and on far better T&C's then your options are very limited if you want or have to work in the UK.
I think the 50% pay in line training is an insult to any experienced pilot, but for now the owner is in the driving seat and growing an airline.