Late start

Good idea

This let in the year you could plant regular seeds and they will flip to flower in 4 to 8 weeks anyway due to the shortening day length. Depending on your lattitude and genetics. But you might get more yield more than an auto planted at the same time, just get stuff that doesn't take forever to finish.

I don’t know, starting photos from seed now. You only have another Six weeks until things start going into flower. They will be pretty small plants. I just wouldn’t expect a large yield, but you may be surprised.