At first it was just soreness, but with time it became pain, in the same area. Its slowly going away again, day by day, but I am easily able to push through soreness,discomfort and stuff. I dont have a problem squatting with sore legs, benching with a sore chest, yet as soon as I was near parallel there was a deep pain in the lumbar region. Even unracking the 230 felt weak and painful.
I agree my core is pretty weak. I pull 315 easy with a belt, but whitout 285-295 is super slow and difficult. The Belt def.helps as something to push on, my lower back is strong, but my abs are pretty weak. I was thinking of something weighted for abs? Noneof that sit-up and leg raises nonsense.
Also the ham flexibility, look at hte first video, my back is almost neutral. Back then I was doing alot of stretching on off days, I had to stop recently. I want to get back into it, hoepfully daily ham stretches will help. I was told to avoid the toe touch stuff though with low back pain.