There's only one gamerule that matters : Gravity at -30. That gravity will be used everywhere from madmen and parkours to spar and tricking. The engage distance is up to you, and I'm not 100% sure for the rest, but I don't think anyone would be bothered if you changed your starting rotation or stuff like that for a madman.
You can check out this thread for more information and help on madmen, this thread for very good videos on parkour and spar, and this one for trick examples.