A good trader knows that he should not Add to a Losing Position. However, I have seen good traders also use the technique of "Averaging Down Cost" to trade out of a losing position into a winning position. These two caveats are diametrically opposed to each other. Which one is the better choice ? My thought is in a trending market, always use the "Do not add to a losing position" rule. However, if the market action is in a whipsaw range, then using the "Averaging Down Cost" technique to trade turn a losing position into a winning position is a better choice. What have your experience been with these 2 trading techniques and how do you determine when to apply them ?