Polar express

It has begun packing on some girth to the buds. They started slow and fluffy, but now getting more dense. Over the past few days it has started producing trichomes. I never experienced a true stretch. It seems like it has only stretched 20-25%. I kept the par values around 1000-1100 and node spacing started very tight. Smell has noticeably increased and when I mess with it has a piney aroma. I'm hoping Next week should see some real change in bud girth and trichome production.