This wouldn't be the same Irish airline you mention that tried to recruit Jet2 pilot's with 737-300/900 on their licences but insisted on a 5 YEAR BOND for an NG differences course would it??
Although they did try to bond already rated guys they didn't have much of a take up on this offer. I don't know of anyone who was already flying the 737 who had to sign a bonding agreement; if they did then they were either extremely poor negotiators or plain daft. You say they tried to recruit Jet2 pilots who were 737-300/900 rated? How many 900s do jet2 currently have in their
fleet? I honestly don't think that there are any NGs battered, used & abused enough to make it onto Channex's AOC. Ryanair are flogging their old 200s though, maybe PM can get a bid in for them before the Nigerians do!