The point is ...if you hire a 320 type rated pilot and you put him on 320, he doesn't have to sign any bond and so he is free to leave anytime.
( it happens recently I think with a couple of 320 pilots who left after just a couple of months and went back to their previous employer).
No if you put the same 320 rated pilots on 787, it means he will have to sign a bond,and he will be basically " locked" here for a couple of years.
That's the Qr Logic IMHO!
