When I changed how the Vertical Spacers were created, the code needed to be changed so that the Segment Edge Length would take the Spacers into consideration. The Segment Edge Length (S.E.L.) now is reduced for each row in which a spacer exists. PLEASE NOTE: The Spacer is a piece of wood with parallel sides. This means that it is simply glued to one angled edge of each segment in that row. Since this piece of wood is angled, the value you assigned to the spacer is adjusted for the angle based on the number of segments in that row so if you have specified a spacer width .25", for example, the actual reduction of the S.E.L. will be more than .25".