The Lamar misdrilled box is one he keeps in his shop that he wont sell without someone actually playing it themselves , before he will sell it to them . He refers to them as shop boxes . Mine just happened to be misdrilled . So sometimes a box won't run on one end ( side ) as well as on the other , so when they drill the hole on the opposite end it comes alive so they plug the hole and have a misdrilled box . This also happens on a call built by a righthanded callmaker but played by a left handed person .