I have a moot coming up based on the case Hurley v Grant, I'm the junior respondent and will be arguing for the second ground "It is not a necessary ingredient in an action for the recovery of money paid under economic duress that the payor's will was overborne." The main cases I will be referring to are Pao On and Lau Yiu Long (1980), Hartley v Ponsonby (1857) and Occidental Worldwide Investment v Skibs (The Sibeon & The Sibotre) [1976] 1 Lloyds Rep 293. Could you please let me know if these are strong cases and how I could argue in favour of this ground.