Ok
A friend came over today, and she jumped 168m on her first try. Guess I just need to practice/mess around a bit more.
When my friends came over, I did notice this was a shortcoming of the game though. While the game does tell you that practicing with friends is much more fun, it also makes it very annoying to switch between Mii's constantly.
So we all just used my Mii, but then the game shows a stupid "your weight seems to have changed" popup after every game.
Also, why are the unlocked minigames/workouts not accessible for everyone?
Oh well...
Besides the ski jump I'm really liking the slalom and the bubble/river game.