Originally Posted by
Spoonplugger1
Keeping it simple, the fast glass blanks are a high modulus S glass that instead of being a woven material, it is layed out linearly down the blank like carbon blanks. Calling it S glass doesn't describe the material any better than carbon discribes what other blanks are made of. Linear fibers are the fibers that resist bending and makes your rod light and powerful. Anything put at any other angle no matter the material is to give hoop stregth to keep the rod from ovalizing and failing under load, the downside is that it's modulus is dramatically reduced by placing it at an angle, the steeper the angle the more modulus drop. So the scrimless designs that have come out lately decrease weight, dramatically increase stiffness to power ratios to the point where the new Fast Glass rods remind you much more of a standard 33 mil modulus rod than the glass rods of old, no matter the previous material you used before.