Hi "andspeed"
I can feel your problem. I am in the same boat. last month I got :580 Q-48 , V-24 , My experience: I solved Quant questions till 32 and then ran out of time, so I just made a random guess for rest of them. In Verbal I was completely bogged down. It was partly because of tiredness , partly beacuse of anxiety and partly becuase of fear of failure and moreover did not have a balanced speed verses accuracy ratio.
On paper based I feel I am good but as you said when the complexity increases It starts eating my time and pushes me down on accuracy level. I know my weekness but don't know how to erradicate them.
" Incease both the speed and accuracy , but how???? "