I do pretty well. Predicted all As and A*s for my GCSEs. I think you just have to get the right balance, think, should I smoke this now, or in a couple of hours after Ive finished this homework or revision or whatever! I neva get stoned aorund exam time, I daren't! My parents have come to expect good grades from me and I dont want to go from getting A's to D's, suspision may arise!