This summer I plan to try a experiment, I want to try to grow faster out door plants right! I have thought on this! thinking if one was to start out growing their plants in a single bucket and get the plants part way through veg then transfer them to the out door grow area and soil.
Now how would it be possible to take a plant! grown soilless/dwc and put it in soil outside? I had some thoughts on this, one way to it may be to make a small pit in the soil big enough to suspend the root system down in to the pit, take a lite potting soil mix, and mix that with water down in to the pit! a little at a time till the plant is supported by the mix or mud soup, the point would be, not to compact the roots to much, another way would be to add in just enough potting soil aound close to the roots and let the roots do their thing by growing out into the soil and add in soil as the roots connect them selves into the soil, this would take a few days maybe a week but sound workable.
I guess what I am getting at is you should be able to by pass a few month of outdoor slower growth by bringing the plants closer to flower, now you ask how do you put them in to 12/12 outside, no problem outdoor dark room home depot or build enclosure that can be moved into place.
Like I said just a thought and possible experiment for the summer can't hurt.
Any thoughts from the guy's
The only thing I know from my experience outdoors is they will show their sex on their own the first week in August. I don't know how this fits in with you idea to flower earlier outdoors, interesting thought!