CrossFit Class 6/9

Beginning on a 4-minute clock:
2 Rounds
12 overhead squats (95/65lbs)
12 toes to bar
If completed before 4 minutes, add 4 minutes to the clock and proceed to:
2 Rounds
10 overhead squats (135/95lbs)
12 toes to bar
If completed before 8 minutes, add 4 minutes to the clock and proceed to:
2 Rounds
8 overhead squats (165/115lbs)
12 toes to bar
If completed before 12 minutes, add 4 minutes to the clock and proceed to:
2 Rounds
6 overhead squats (185/125lbs)
12 toes to bar

Stop at 16 min