I have no ACL in my left knee from a skiing accident 10 years ago.  I have had two attempts at reconstructive surgery which failed (re-injury), so I also have four titanium screws in there making things awesome.  I have damaged menisci in both knees.  I am missing part of the patellar tendon in my left knee. This test is easy and I was able to complete it on my first try with only a .5 deduction for loss of balance (I had to do the get your ass off the floor movement twice cause I didn't overbalance far enough forward the first time).  What you are missing is an entire extra person worth of dead weight XD