Hi everyone,
this is a great topic. I feel that everyone should use what they are comfortable with.
the hook, hook size and how you tie it depends a lot on what you use on the hair.
small hooks for corn size 8 or 10
size 6 to boilies and pop ups.
i don't use bigger than that and I fish with pop ups 90% of my casts.
I have an example of my set up attached.
Just try to use hooks with small barbs for carp safety.
Tight lines