You know about horse-racing, right? Well, the same methodology applies here. Everyone has a system they use to help them calculate and pick and choose. With me, I take somewhat of an unorthodox way, along with researching the company itself. If I state something, people can accept it or not. What I state is just my opinion on things. Or, I may reference what others have stated along with my opinion. People just have to get over themselves, for one never knows if information could be correct.
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