My spinal erectors felt sore through Saturday. Sunday, I felt recovered. The feeling was not indicative of actual recovery. I was planning on continuing my progression in squats. However, my warm up set at 275 was a struggle. It was evident to the other lifters in the vicinity. I had difficulty keeping my chest up.
I ended up doing the usual volume of reps at 315 but broken up in triples, doubles, and singles.
Squats: 325×3, 320×1, 315×3, 315×3, 315×2, 315×1, 315×1 (did one extra rep)
Pistols (scaled): 5×2
RDL: 225x5x3
One Leg Hamstring Curls: 80x5x4
Toes to Bar: 10×3, 5×4