The biggest deadlift problem? Not having a proper setup in terms of where the bar path begins and ends.
In short, don't set up where the bar is too far away from your shins. This creates a large lever arm for the lower back and huge sheering forces.
The bar should start right beneath the shoulder blades, close to the shins. This will set you up for a proper pull – the bar will go up and down in a straight line.
The Shotgun Method allows you to train for both size and symmetry without having to skimp on either. It actually allows you to concentrate on the big lifts without neglecting isolation exercises that address lagging body parts.