Wood the growth of the young timber in open stands after the old trees have been removed is more rapid than in trees in a closed forest, and in the manufacture of articles where strength is an important consideration such "second-growth" hardwood material is preferred. This is particularly the case in the choice of hickory for handles and spokes. Here not only strength, but toughness and resilience are important. The results of a series of tests on hickory by the U.S. Forest Service show that: The effect of rate of growth on the qualities of chestnut wood is summarized by the
Lacrosse stick for the ball to roll along as it exits the pocket. As of the 2013 season, the NCAA has passed a rule stating that shooting strings are limited to an area within a 4-inch arc drawn from the top of the plastic of the scoop.This essentially eliminates U- or V-shaped shooting strings, as they almost always cross below the 4-inch line. The pocket depth is governed by rule as well. When the ball is placed in the deepest point, the top of the ball must not be below the bottom of the sidewall. Modern handles, more commonly referred to as