Well, speaking personally Cafeenman, if I can save 5 grams for a 10% strength gain on a 35 gram airframe it is heaven sent.
If I can save 10 grams on a 80 gram airframe...
The need for the glass is 'cos I don't throw too good and I frequently bust wings


that is why I need them stronger

The current project is glass/cf/depron foam - a challenge that is.