I second that about the carb drops. Used them once, and it's like soft drink. They're nice to eat, though, tastes like sugar lollies. IN fact, they prety much are.
I go for raw sugar.
Also, about the measure, the chemistry student in me (well, the part left from high school) would say that if you're measuring in some sort of measuring spoon, making the suger flat and not rounded or heaped gives the volume intended.