Study - who needs it?
I've found the best pathology for maximising results to be diversification of lifestyle. Studying incessantly won't do anything for you unless you feel good in yourself, and the ticket to feeling good in yourself is to harmonise all aspects of your life - not merely study.
If you're after the big scores, you want to strive for the best that YOU can produce, not a figure beyond your grasp. Harsh as it may seem, study, as prolifically as it may be conducted, can only ever yield so much. The rest will depend on pure intelligence - something many may not have, and certainly not something the pursuit of which should lead to the forfeiture of everything else in life. Go hard, but be realistic about it.
My exams are next year, and if I were to advocate study measures at all, I'd stress the importance of gaining understanding of an idea before launching into a mad deconstruction of it. If you can get your head around something, it'll be 10 times as valuable as spending 8hrs each night for 3 weeks trying to come to grips with its vagaries. Everyone has their own style, though, so don't feel compelled to, by any means, follow my example. I don't find I need to study much at all - I've been blessed with having everything come easily to me, but the trade off is that I'm lazy and tend to wig out before deadlines. Find out what works best for you.