Most people do not realize that if you sign a training agreement (contract) and then on say day 92 you get fired for some reason, it may not even be a reason under your control or one that you even agree with, then you are liable for paying the whole thing back with some of these things. I would be super reluctant to sign any contract, even the pro-rated variety. At least pay a lawyer to spend an hour reading it to you and advise you what it is going to be like if the company terminates you prematurely then sues for the money. One would be inclined to say oh, no company would terminate and then sue, but you would be badly mistaken because it happens. Pilots are often bad about not understanding the contacts they sign, and pay dearly for it.