ORIGINAL: newman1
fiberglass
Don't take this the wrong way but not good limbs.There are alot of quality bows that choose not to use the best available technology to build their limbs.
It is true that most limbs on the market today are fiberglass but the best limbs are laminated of glass and carbon resins.
This why most ( if not all)manufacturers are experiencing a higher failure rate than those that choose to utilize the available technology of lamination.
All manufacturers do have limb failures from time to time but much lower in the laminated ones.