I think bad posture makes lowers easier to do... I've had bad posture all my life so it's what I was used too.
But bad posture = bad style.
Force yourself to stand up straight and your style will look 43580325 times less heavy.
stop giving bullshit advice when u know fuckall about it...go watch a rocco video and tell me how straight his back is, then go watch an fx video and tell me how straight his back is, then after that go watch one of your videos and tell me how straight your back is.
i think we can agree that a less heavy style = faster style. so run this little experiment, lean forward and see how fast u can move ur leg and how balanced you are. Then, lean backward and see how fast u can move your leg and how balanced you are.
care to tell me your results samuel?