I injured my hamstring in August, so to help with this I changed my form and went to a more low bar position and narrowed my stance quite a bit, so I could squat deep (6-7 inches below parallel). It forced to me to stop 5/3/1 for a while and switch to a linear progression approach so that I could get back to where I was while on 5/3/1.
Once I got back on 5/3/1, I started training my posterior chain alot and without me doing anything my stance got a lot wider and my squat became more hip dominant. It's been almost 4 months back on 5/3/1, my lifts have gone up A LOT, however, I've now got high hamstring tendinopathy, my knee also hurts a bit when I squat and I'm no longer able to squat deep as I'd like (I prefer squatting deep)
One thing that helps all of my issues is narrowing my stance by about an 2 inches per foot. If I did this would it be possible to stick to the current numbers? I really dont want to take time off again.