Do you really believe that what is best for Salford is to keep a player who wants to be somewhere else? Particularly if that player is first choice where he currently plays, but is unlikely to be if he returns to Salford? Dream on!

A player retained against his wishes is an unhappy player and unhappy players don't perform. So who wins? Nobody! The club's interests and the player's interests are not separate.

Not wishing any ills on the lad ,but if he was to pick up a lengthy injury , would we be responsible for his rehab still .

I think the quote from the Doc on the BBC last night was telling, he said that Hull paid more for Sneyd than he himself would have paid and that the fee was more than £100,000.

Pretty obvious based on this that we got a brilliant deal for him.

Yes, as he is still a Salford contracted player.

Is it not different for a season long loan?

I'm not sure this is a big issue.
He's currently on a relatively small contract and I would guess Cas are fully responsible because , as Red Willow rightly says, it'll be different when it's a season long loan.
If there is a problem,it would come if he was injured and not fit enough to start the season with Hull.
We could speculate all day but it really depends what the transfer documents say