I think the question marks were mine???? I guess my reasoning is that 12/12 throws the plants into bloom and they would try to make flowers instead of roots. Cool if I'm wrong. I've seen lots of threads where folks put rooted cuttings into 12/12 but never fresh cuts.
I do have to agree with Shnkrmn on this one. I ran a grow journal test on this site about 3 years ago. I had two lights in flowering mode. One had clones that went right into flowering with Zero Veg time. Right next door I ran the other light with clones that had 10 days of veg time. The plants with zero veg time produced some nice dank buds, but the plants we just one long stretched stem with a Cola rapped around it, almost touching the soil. The other plants that got 10 days of veg time were about the same height, but they had 3-4 stems with nice dank buds, also almost touching the soil. They both produced about the same quality of buds. But the plants with 10 days of veg time produced about 3-4 times the buds.
BUT, with the plants with zero veg time, you could literally place the pots or grow bags right next to each other. You could cover the same area with about 70% more plants and produce the same amount of buds, maybe a little more. But, both illegal and legal grows have to be concerned about plant count. If you are illegal, the number of plants is multiplied by about $1,500 per plant and this is how they estimate the value of that crop, and how hard core they are going to try and nail you.
And if you are Legal, then you need to fit within the number of plants allowed. I am allowed to grow 15 plants. 15 plants with no veg time might get me 15 ounces at most. But if I gave that same 15 plants at least 10 days of veg time to set roots, I could get 30++ ounces.
Once again, it is what you are looking for. If you want a huge number of plants with just one single Cola per plant, then No Veg time is your thing. But if you want a smaller number of plants, you are going to need to give your plants some veg.