trying grape cuttings like this

trying grape cuttings like this, in our root cellar where it's a bit cool and quite damp. dipped into some iba talc, a bit of cambium exposed, 2-3 node cuttings. last year through sheer neglect we had bundles of cuttings root in these conditions, but I wonder if I should move them outside and just keep in the shade. I was going to wait for some root development, and the root cellar isn't being used, figure at least they don't need to get watered in here. have a few shelves like this. advice welcome, still figuring out grapes