Back lever practice is NOT part of your Saturday Challenge Series!
Kurtis and Aaron are leading a group of "strength inclined" RCFer's to Lynnwood and CrossFit Advantage for "Occupy Strength" on November 17th. If you'd like to go compete, here's the link to register. If you'd like to go watch and cheer, we'll be organizing that in November but mark your calendars now! There is a place to enter your "gym" on the form. Be sure to put Rainier as there is a gym score thats calculated and a "strongest gym" award!
As for your at home, Saturday Challenge Series workout- this one comes straight from The Travelling WOD: