No offence intended Posh but your assertions about the deal make no sense whatsoever. Why the hell would we sell Hobbs for 25% of £600,000 plus 25% of any accrued amount over £600,000, and not just sell him for £150,000 plus a sell on of 25% of any accrued amount over £600,000? Pefectly legal and an identical effect. Makes more sense the way you state for it to be something like 25% of the original £600,000, the remainder of the £600,000 if sold (or for instance £250,000 if sold for £400,000 (£400,000-£125,000 already paid) and then 25% of any amount over the £600,000. This would of course mean that Liverpool would have to sell him for more than £600,000 to make any profit.