I have the Fibraplex poles for my Firstlight and I have another set for my OneShot. I have been satisfied with the quality of the poles, but I would second the need to be very careful and make sure the poles are well seated into one another before bending them. The fit on the OneShot is tighter than the Firstlight and I did have an end crack on a trip last summer.
Fortunately, a trail angel gave me an aluminum splint which saved the trip and I was able to have the pole repaired for $5 by the manufacturer. The problem was definitely user error and not as a result of the manufacturing process. Having said that, there is certainly less room for error with the Fibraplex poles. To me, the weight savings are worth it.