Photoperiods and autos in hempy buckets

Steady trucking. I switched to a 315W CMH light a couple days ago and loving it so far. The Kalashnikova is still easily the largest plant and is pushing out a shit ton of bud sites, I've removed some of the bottom ones. Critical Auto #2 is still looking really flimsy in structure. I think this is mostly due to them getting less light as auto's. They would've certainly benefited from at least a few weeks more with 18h light. Critical Auto #1 is a bit sturdier. But it's mainly an experiment anyway and my photoperiods are doing great.