I have been carpin with mixed sucess but I never take anything lighter than an 8 ,and if we fish skinny water with wood , heavy weeds,etc, we'll take the 10's. The 10 gives you the backbone to keep them out of the snags sometimes. We usualy use Seguar floro 17 lb tippets with the 10's, there is one river near the house that has great flats and big big Carp and I have thrown a 14' 11 wt. 2h to keep them for running into the wood piles the spring run off usualy deposit. They still manage to break off so we'll keep trying.