Are you planning on cutting your back now or are you just going to let them sprout all over the place?
i've been doing a lot of research on whether or not home-growers should cut back first growth and opinions seem mixed. there are very good reasons why commercial growers should do it (ensure even growth, disease control) but for us little guys who have a few plants that we can tend to individually... there are arguments for and against. at this point i'm leaning towards not cutting. well, at least not all of them. i'll let them grow for another week, pick out the 4-6 strongest bines, and cut down the rest.