 However, Oxford wanted the roof of the aisles to be of steeper pitch, and a decorative moulding (or "string course") around the interior walls, while Cambridge wanted more pinnacles and just one large window in the transept ends.Blacket obliged by making such changes as he could, but the string course and the rebuilding of the paired windows in the existent transept were impractical.Blacket had the model-maker J.C. White construct a detailed cardboard model of a scale 1 inch to 8 feet.