I'm definitely finding bits of me that are weaker than others. For a long time on my deadlifts it wasn't my back or legs that was holding me back, it was my forearms. I just couldn't hang onto the bar. I gritted my teeth and was patient and now my grip is starting to catch up with what my legs can do. I finished up stage 1 with 115lbs on the DL's after being stuck at 90 for most of it. I was utterly stoked and I think went through the rest of my workout grinning like a cheshire cat
Anyway my point being that sometimes we have to be patient to let the weaker bits catch up with our stronger bits.