I'd love to know what the add-ons are for City and Arsenal.
I'd think that Arsenal would have to go with player related ones like appearances, goals and assists, maybe games won. Whereas City would instead go with team related success like winning silverwear. I just picture us wanting to avoid having anything but team success as the ultimate driver.
So counter to popular opinion maybe the add-ons from Arsenal might be more achievable than those at City. And therefore if we are forced to pay more we'll bump up the 80M side instead of the 10M side.
Just guessing obviously.