50 back squats in as few sets as possible

Coach’s notes:  Recommended weight is 100% body weight for guys and 70% for gals.  This WOD is not timed.  If you cannot squat your body weight, scale the load as needed.  All squats should be full range of motion meaning that the crease of your hip should end up below the top of your knee.  In other words, your thigh should be below parallel.  Of course, maintain a neutral low back position throughout the movement.  If you cannot do this, you should be working on body weight squats only.