What do people see as the differences and advantages/disadvantages of shorter bows vs. longer and lighter vs. heavier? How does cambre affect the bow; more cambre, less cambre? How do you all like your bows haired? The gentleman that hairs my bows installs the hair in such a way that it is tight. I've seen bows with hair very loose, even after the screw is tightened. That was very different from what I'm accustomed to. What are the pro's and cons?