I think I might eliminate the far red bulbs on my next grow to see exactly what kind of effect they have on the height. These plants are tall, but I’m not impressed at all with the thickness of their stalks and stems. I think the far reds encourage too much stretching, and that might have something to do with it.
@NedBogan, worst case you can always supercrop them during the stretch if they’re getting too tall for your space. It’s not my preferred method, but I’ve been forced into it many times!