Cloning Flowering Autoflowers?

I believe both plants are in a flowering growth spurt. They are growing an inch a day. I keep adjusting the PH by adding base. I have 2 Kale plants growing in the same bin since prior experience with Kale is that they produce a lot of base (and the family loves Kale). My hope was that they would balance out the Cannabis acid production. If they are, I think they are too small to be having a major impact yet. The trunk of each plant are now a little over 1/4 inch. They are getting stronger. The scent of both plants is pretty strong now. I've ordered a grow tent and air filter that I expect to receive this week. My main priority is to get the smell under control. I also hope the reflective walls will help make better use of the available. light. This was a very low cost COB led, I wish I got something with more light output. At this point, they seem like pretty normal flowering TD plants. When you get the chance look at week one and two, the difference is pretty amazing. When this growth spurt stops, I think I'm going to take another cutting and try to clone that as well. I can't help but wonder how late into flowering the plant can be and still get a successful clone. That said, I still need to get these two over the finish line!