For the buds that you are showing, I would wait until after they've hardened, not just popped, next year.
You could cut back now if you've got other buds that have a few rows of needles between them (the buds) and the next node/whorl.
Of course, you could experiment with a branch or two (individual branches are largely autonomous) and see what happens. In fact, I suggest that you do this and let us all know the result if you've got a couple of branches that you can afford to put at risk.