I am a bit of the same view as you Shift Cat, to be honest.
Yes, maybe we could build some clause into a contract, I am sure we have done this before.
When he wants to be, he is a class act, very similar style to Miller though, but if you were to compare the two when they are both firing, I think Kelly is the better player. If we were to bring in a 2nd half back, but an organiser, this could be a good move.
No, Chester didn't drop him, he picked up a knock last year during the semi final I believe, which was worse than initially thought, and didn't play until the Challenge Cup Final, and pretty much remained a doubt until the day before. He played in Hull KR's first 3 games of the season, of which Chester was sacked just a couple of days following this.