The question is, which is the greater sin? The handler that allows the dog to be offline all the way down the fetch and miss the fetch panels, or the handler that gives commands to hold the line that the judge wants the sheep to travel on. I would say trust your dog to work the stock with out comands. A dog that brings sheep in a straight line to the handler but the wrong straight line "according to us humans" is doing more practical work than the dog that responds to commands to bring the sheep in a "zig-zag" motion in order to stay on line in a non stockman like desired path.