Originally Posted by Minnewaska
It seems the OP's stage in their training is being lost in the discussion.
Such is often the OP's fate. That said, it's good to consider what lessons the OP can take from the discussion. After all, he's asking "why?", not, "What's the fastest point of sail?" If he's asking why, then maybe he's in a position to benefit from some understanding of the mechanics of sail trim.