All mind (2 each cascade, Willamate, Goldings, simcoe, tettnager, and fuggles) were about 6-8 inches yesterday.
I say "were" as I am following the advice in that hop garening book to cut the first shoots down to the ground, wait for the second set, and only allow 2-3 of those to grow to maturity. This is my third year with all these.