They may well be and if they are I should take that back, but I don't use Crane on mine and I don't use the Barrel.
Skip
Peak Vise Dealer
Tying Materials, Chenille and Hackle For Pictures of my Crystal, Nylon/Rayon or
New Age Chenille Please PM Me! Also I
have the Saltwater Neck Hackle and some
colors of Marabou plus other things!