I am 6'5 and have a relatively bad posture. My shoulders kinda hang forward and down. I've been trying to work on my back to get it straight and have my shoulders moved up and back but it seems to not work that great.
I am using less weight for my back exercises because if i use heavier weight, my posture is bad. So, is there an imbalance because i use heavier weight for chest but less for back?
Also, I know there are tons of back exercises, but which ones would you recommend for targeting a straight strong back and for pulling the shoulders back? And how should I perform those? (grip, reps)