The long ends of the CCA style of boat also adds buoyancy in the ends and flattens out the buttocks at the ends which helps to keep you from being pooped while running. Also another characteristic of the style is narrow beam with slack bilges and a curve of area that is more symmetrical forward and aft then modern boats. Makes for a gentle motion at sea and promotes easy steering. In fact a lot of CCA boats will self-steer while very few modern boats will do this for more then a few minuets at a time.
All the best,