When I do multis, it's usually only 2, 3 or 4 games. I've only had one go at a larger multi (7 games) and I won it. However, 1 of the games was won in extra time and 2 others were won in the last minute, so I think I was just lucky. It sure was exciting, but it was also excruciating having to go through all those results and I would have been very disappointed if I had got 6 winners out of 7 and got nothing.