Because they are stiff. You should use more than the min. amount of joints to do your moves. Looks better. Well done anyway.
Oblivion: that wasn't hilarious
Oblivion: it was brilliantly complex though
Oblivion: hands down man
Oblivion: today I genuinely believe more than I ever did before
Oblivion: that you are better than me
Oblivion: gg NutHug
