Thats one thing that I never have done with my carbons is cut them. I buy the full length shafts and put feathers on and let them rip basically and never had any issues. The woodies on the other hand I have them cut to a certain length.
To me the making the arrows is all part of being a traditional archery. I love putting together the arrows and inspecting each one, I could almost name my arrows too, both carbon and wood 🙂
What I like about carbon over wood is the fact that I can bounce another arrow off of it and it will not be effected. The woodies get banged up and I have already had 2 arrows explode upon release and I will not fire any more damaged arrows because of it.