Autopots: ILGM Granddaddy Purple Fem

I think I'm getting closer to dialing in my nutrition and environment with this grow. Plant growth has been excellent. There's the slightest hint of nutrient burn on some of the tips, which probably coincides with me upping the feed above the GH recommended PPM for medium feed. I burned my other plants by going too hot and immediately switched back to following the max PPM on the chart on this grow. So far so good. The tallest stems are four feet tall from the surface of the coco, five feet from the floor. They're just a few inches from the lights. I'll need to reconfigure the exhaust on my tent to give them a few more inches - then I guess they're just in the lights at that point. I didn't expect them to get this tall with scrogging. No smell yet but rubbing the stems or even just brushing against them produces a strong smell.