Looks very nice!
I've got 2 K-Train going right now myself--one got topped, one didn't. Both are pretty big but the one that got topped is really bushy. I've stripped the leaves from the bottom ~1/3 or so in order to concentrate the plant's energy on the top canopy, as they are both pretty tall.
Mine are just past 5 weeks into flower, and one has little smell at this point and the other smells strongly of citrus/lemmon/fuel
Bud