Some winning stocks don't pause long enough to give investors a handhold. But a very few craft a rare pattern called a high, tight flag. Much like a buttonhook pass pattern, this sprint-and-turn-style base gives investors a chance to grab a piece of a winner in the midst of an explosive run. Taser International (TASR) provides the classic example in its breathtaking run begun in 2003. Qualcomm (QCOM) also launched out of a high, tight flag midway