obviously vanguards have come down heaps already. have a look a this cut and pasted from the banner above on this site
Re your kevlar question. Does Kevlar even make a big difference? For Sups not really, decent Sups already have 3-4 layers of materials top and bottom that wrap round the the rails. This creates 6-8 layers on the rails, which by nature creates parabolic rail stringers that create stiffness and strength. How much more strength do you need? Kevlar and Carbon are only of value if glassed correctly resulting in two important things,added strength at a reduced weight.