As far as my disc injury is concerned, I found your useful advice in this thread:
http://startingstrength.com/resource...sc-injury.html
In my particular case, the MRI said "showing early degenerative signs with multiple disc bulges". I get no pain while lifting, but mild pain afterwards. However, if I put more than 155 on the bar (3x8x195 would probably be my work sets these days) I get the same old buttock, quad and foot partial numbness (feels like my leg is half-asleep in multiple places). I'm scared to death of cauda equina syndrome or permanent damage but I want to lift heavy again, I've always wanted a 400 squat. If I was your trainee would you have me squat and/or deadlift with these symptoms, or only do as much weight as I can without causing these symptoms? I've got a visit with the orthopedic surgeon soon and I just know he is going to say not to do lower body exercises anymore...
Thanks so much.