6, working on 7 nodes in after a couple of weeks of veg isn't bad.
You show 1 week from first light to being in veg in the question but looking at your 4 week timeline and the latest week, you seem to be doing fine. I don't think your second week was in full veg.
You would see more side branching if you topped it back at node 3-5. Stopping so much of the upward growth and let it send more energy into bulking up the side branches.