If you think that you have peaked in your parkour abilities and you think there is nothing left to learn, then let me chase you.
Im sure we can work on SOMETHING
And really, nobody is holding a gun to your head to do ONLY parkour. Freerunning, tricking, Martial arts, gymnastics, tickling midgets...... its all just moving. Move the way you feel like you WANT to move. Go out, do a flip, and tell me how it made you feel.