Woke up feeling good enough to lift. Got to the gym and that deep soreness in my back returned pretty quickly during warm-ups. I should have gone home. My first sets felt heavy and even 405x3 was a challenge. I did 495x3 and just stopped because I knew it would turn into a fight for each rep pretty quickly. I then went ahead and pulled a lat doing front squats (it hurts badly).
I'm gonna take a few days off. Even before pulling my lat I told myself after my final set that I was gonna cutout deadlifts for a bit until my back was finally recovered. To be honest, I've been pretty dumb with my assistance work on all my workouts, going too heavy for too many sets and I'm not recovering. I let my ego get back into my workouts and, well, it fucked me. Fuck.