There are great-looking base patterns. Then there are some that are not so good. So how do you find the great ones? The great patterns will rarely show wild price action. So train your eye to look for those that illustrate tight, constructive price action. In a great base, some days will show big gains in heavy trading. That’s desirable. Yet others will feature bone-dry volume as well, especially on down days in price. That’s also desirable.