If you think the thing you did was a cartwheel, you are...
Tip: Put the gravity up to alteast -25, or your replays will look no where near realistic.
And relax your joints more.
Don't listen to ^that guy. Keep on using -30, but you HAVE to practice realism (unless it's not what you were aiming for) but you DO need to relax your joints a bit more
Since you posted too many replays, I can't CnC them all. All I have to say is that you need to practice more. Try -9.82 (the default gravity) a bit