I checked some results from my CL- and Cup- opponents, and some friends... there are some freaking results:

CL first leg QF: 98% (manager + 2 friends) vs 78% (<- away, no manager, no fans) 1:2
he conceeded before only one goal at the whole CL.

CL first leg QF: 80% vs 92% 3:1 (don't know about fans/manager)

my own CL first leg QF: 98% vs 119% (me) 2:3 (Details posted here)

Cup 2nd leg QF: 124% vs 98% 1:2 (don't know about fans/manager)
The 124% conceeded NO goals and win all games (first leg 1:0) at cup... now he's out by a 98% guy, which nearly lost one leg at cup...

Cup 2nd leg QF: 102% vs 122% 1:1 (don't know about fans/manager)

Cup 2nd leg QF: 106% (manager + 1 fan) vs 78% 1:1

League last round: 98% (manager was there) vs 84% 1:1

League last round: 72% vs 103% (manager + me) 3:2


I know, "quality" is not all, but especially Cup - you don't get to QF, if you're a noob. So I'm sure, in some cases, there was a change, but what kind of it?