There has been some discussion regarding whether delegates should vote according to the will of the precinct or their own conscience. I'm definitely in the camp of voting my conscience. To me this choice is clear because:
I will study the issues and candidates far more than most people in the precinct. Most people don't seem to put much thought into it.
Popular opinion can be manipulated by media and people who play to it in ways that will cause them to support one cause or another without adequate consideration.
This doesn't mean I will ignore the opinions of others, including those of my precinct. I frequently collaborate with others on important issues in order to make better choices.