Question about a Skutt 1027 kiln

Riddle me this: What happens if, instead of putting only one top/bottom element in the top and bottom sections, you put two top/bottom elements in? The recommended elements are a single top/bottom for the very top and the very bottom. They then recommend that a center element goes into the bottom of the top section, the entire center section, and the top of the bottom section. Right now we have 4 top/bottom elements and only 2 center elements. And they won't exchange them since the pigtails have been cut.