Well it's been 2.5 weeks since my injury and every single day, my knee gets better except for this past Tuesday/Wednesday and I believe that it was the squatting.  I thought since I was able to pretty much extend my knee I can do some squats but not jump/plyo.  Of course I can't be 100% sure, but some pain came back immediately the day after squatting.  
What is a good way to test if my knee has healed then?  It seemed fine, no pain, able to bear weight when extended, etc.. I want to know when I can get back to knee extension exercises.
BTW, on today's deadlift session, I tried the touch n go method.  What's your thought on this vs resetting on each rep?  What I found today was, I was lifting much better this way doing a solid 3x5 @ 275lbs, and pretty much felt everything in my hamstrings (which should be good since that's my weak link) compared to when I usually reset, I feel it in my hamstrings + lower back, etc..