Correlating profile data facilitates sophisticated code optimization. In this design the panels are made from high-strength materials wherein the panels are the primary structural elements and the perimeter frame is used primarily as a means of attaching the panels. Clustering will be possible if and only if all 2N of the logical pages having logical page addresses of the form Lstx:x are either currently-mapped or currently being mapped, where s and t are the same for all 2N of the logical pages but x:x can be any of the 2N possible different combinations and permutations of 0 and 1. A sensing device senses the presence of the set and operates the processing station without operating the in-feed station. The first depression has a bottom having at least a first bottom portion and a second bottom portion, wherein each one of the first and second bottom portions has a different radius of curvature.