Siskyou, you had me wondering and I had to look it up to make sure, I also did this and it was to a moderator (sorry PA) and got myself set straight by Tribalscream. Oh well.
Chdeerbio, about the only way to know for sure is to measure them up to see if they have stretched. Only problem is you will need to know what length they actually were and not what the sticker says. I've seen fastflight stretch quite a bit but twisting the cable up may get you back to where you need to be. Big Country may be right about the limb bolts loosening. I've had them turn out too.