Think that just about confirms it then doesn't it. Even though I didn't win the league in L9, I'd still say L9 is generally an easy league for teams on the middle of the road on older servers like you are. Still a lot of inactives/abandoned/semi-actives around. L10+ I think you will win the league each season but your bound to draw leagues where there is some sort of a challenge in the shape of at least some 5* teams, of course theres your former rivals likely to still be kicking around... that Simy FC, PSG, Sparta Ackaya and Clastresmorcourt are bound to show up at some time again.